<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"> <style>
	.KEYW {color: #933;}
	.COMM {color: #bbb; font-style: italic;}
	.NUMB {color: #393;}
	.STRN {color: #393;}
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	.line {border-right: 1px dotted #666; color: #666; font-style: normal;}
	</style></head><body><pre><span class='line'>  1</span> <span class="COMM">/*
<span class='line'>  2</span>  * Copyright (C) 2008, 2009, 2010 Mihai Şucan
<span class='line'>  3</span>  *
<span class='line'>  4</span>  * This file is part of PaintWeb.
<span class='line'>  5</span>  *
<span class='line'>  6</span>  * PaintWeb is free software: you can redistribute it and/or modify
<span class='line'>  7</span>  * it under the terms of the GNU General Public License as published by
<span class='line'>  8</span>  * the Free Software Foundation, either version 3 of the License, or
<span class='line'>  9</span>  * (at your option) any later version.
<span class='line'> 10</span>  *
<span class='line'> 11</span>  * PaintWeb is distributed in the hope that it will be useful,
<span class='line'> 12</span>  * but WITHOUT ANY WARRANTY; without even the implied warranty of
<span class='line'> 13</span>  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
<span class='line'> 14</span>  * GNU General Public License for more details.
<span class='line'> 15</span>  *
<span class='line'> 16</span>  * You should have received a copy of the GNU General Public License
<span class='line'> 17</span>  * along with PaintWeb.  If not, see &lt;http://www.gnu.org/licenses/>.
<span class='line'> 18</span>  *
<span class='line'> 19</span>  * $URL: http://code.google.com/p/paintweb $
<span class='line'> 20</span>  * $Date: 2010-06-26 21:44:56 +0300 $
<span class='line'> 21</span>  */</span><span class="WHIT">
<span class='line'> 22</span> 
<span class='line'> 23</span> </span><span class="COMM">/**
<span class='line'> 24</span>  * @author &lt;a lang="ro" href="http://www.robodesign.ro/mihai">Mihai Şucan&lt;/a>
<span class='line'> 25</span>  * @fileOverview The main PaintWeb application code.
<span class='line'> 26</span>  */</span><span class="WHIT">
<span class='line'> 27</span> 
<span class='line'> 28</span> </span><span class="COMM">/**
<span class='line'> 29</span>  * @class The PaintWeb application object.
<span class='line'> 30</span>  *
<span class='line'> 31</span>  * @param {Window} [win=window] The window object to use.
<span class='line'> 32</span>  * @param {Document} [doc=document] The document object to use.
<span class='line'> 33</span>  */</span><span class="WHIT">
<span class='line'> 34</span> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="NAME">PaintWeb</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">win</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">doc</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 35</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">_self</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">this</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 36</span> 
<span class='line'> 37</span> </span><span class="WHIT">  </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">win</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 38</span> </span><span class="WHIT">    </span><span class="NAME">win</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">window</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 39</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 40</span> </span><span class="WHIT">  </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">doc</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 41</span> </span><span class="WHIT">    </span><span class="NAME">doc</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">document</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 42</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'> 43</span> 
<span class='line'> 44</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'> 45</span>    * PaintWeb version.
<span class='line'> 46</span>    * @type Number
<span class='line'> 47</span>    */</span><span class="WHIT">
<span class='line'> 48</span> </span><span class="WHIT">  </span><span class="NAME">this.version</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0.9</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">//!</span><span class="WHIT">
<span class='line'> 49</span> 
<span class='line'> 50</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'> 51</span>    * PaintWeb build date (YYYYMMDD).
<span class='line'> 52</span>    * @type Number
<span class='line'> 53</span>    */</span><span class="WHIT">
<span class='line'> 54</span> </span><span class="WHIT">  </span><span class="NAME">this.build</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">//!</span><span class="WHIT">
<span class='line'> 55</span> 
<span class='line'> 56</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'> 57</span>    * Holds all the PaintWeb configuration.
<span class='line'> 58</span>    * @type Object
<span class='line'> 59</span>    */</span><span class="WHIT">
<span class='line'> 60</span> </span><span class="WHIT">  </span><span class="NAME">this.config</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 61</span> </span><span class="WHIT">    </span><span class="NAME">showErrors</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="WHIT">
<span class='line'> 62</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 63</span> 
<span class='line'> 64</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'> 65</span>    * Holds all language strings used within PaintWeb.
<span class='line'> 66</span>    */</span><span class="WHIT">
<span class='line'> 67</span> </span><span class="WHIT">  </span><span class="COMM">// Here we include a minimal set of strings, used in case the language file will </span><span class="WHIT">
<span class='line'> 68</span> </span><span class="WHIT">  </span><span class="COMM">// not load.</span><span class="WHIT">
<span class='line'> 69</span> </span><span class="WHIT">  </span><span class="NAME">this.lang</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'> 70</span> </span><span class="WHIT">    </span><span class="STRN">"noComputedStyle"</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"Error: window.getComputedStyle is not available."</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 71</span> </span><span class="WHIT">    </span><span class="STRN">"noXMLHttpRequest"</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"Error: window.XMLHttpRequest is not available."</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 72</span> </span><span class="WHIT">    </span><span class="STRN">"noCanvasSupport"</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"Error: Your browser does not support Canvas."</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 73</span> </span><span class="WHIT">    </span><span class="STRN">"guiPlaceholderWrong"</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"Error: The config.guiPlaceholder property must "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'> 74</span> </span><span class="WHIT">      </span><span class="STRN">"reference a DOM element!"</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 75</span> </span><span class="WHIT">    </span><span class="STRN">"initHandlerMustBeFunction"</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"The first argument must be a function."</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 76</span> </span><span class="WHIT">    </span><span class="STRN">"noConfigFile"</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"Error: You must point to a configuration file by "</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'> 77</span> </span><span class="WHIT">      </span><span class="STRN">"setting the config.configFile property!"</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 78</span> </span><span class="WHIT">    </span><span class="STRN">"failedConfigLoad"</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"Error: Failed loading the configuration file."</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'> 79</span> </span><span class="WHIT">    </span><span class="STRN">"failedLangLoad"</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">"Error: Failed loading the language file."</span><span class="WHIT">
<span class='line'> 80</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 81</span> 
<span class='line'> 82</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'> 83</span>    * Holds the buffer canvas and context references.
<span class='line'> 84</span>    * @type Object
<span class='line'> 85</span>    */</span><span class="WHIT">
<span class='line'> 86</span> </span><span class="WHIT">  </span><span class="NAME">this.buffer</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="NAME">canvas</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">context</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 87</span> 
<span class='line'> 88</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'> 89</span>    * Holds the current layer ID, canvas and context references.
<span class='line'> 90</span>    * @type Object
<span class='line'> 91</span>    */</span><span class="WHIT">
<span class='line'> 92</span> </span><span class="WHIT">  </span><span class="NAME">this.layer</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="NAME">id</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">canvas</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">context</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'> 93</span> 
<span class='line'> 94</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'> 95</span>    * The instance of the active tool object.
<span class='line'> 96</span>    *
<span class='line'> 97</span>    * @type Object
<span class='line'> 98</span>    *
<span class='line'> 99</span>    * @see PaintWeb.config.toolDefault holds the ID of the tool which is 
<span class='line'>100</span>    * activated when the application loads.
<span class='line'>101</span>    * @see PaintWeb#toolActivate Activate a drawing tool by ID.
<span class='line'>102</span>    * @see PaintWeb#toolRegister Register a new drawing tool.
<span class='line'>103</span>    * @see PaintWeb#toolUnregister Unregister a drawing tool.
<span class='line'>104</span>    * @see pwlib.tools holds the drawing tools.
<span class='line'>105</span>    */</span><span class="WHIT">
<span class='line'>106</span> </span><span class="WHIT">  </span><span class="NAME">this.tool</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>107</span> 
<span class='line'>108</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>109</span>    * Holds references to DOM elements.
<span class='line'>110</span>    *
<span class='line'>111</span>    * @private
<span class='line'>112</span>    * @type Object
<span class='line'>113</span>    */</span><span class="WHIT">
<span class='line'>114</span> </span><span class="WHIT">  </span><span class="NAME">this.elems</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>115</span> 
<span class='line'>116</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>117</span>    * Holds the last recorded mouse coordinates and the button state (if it's 
<span class='line'>118</span>    * down or not).
<span class='line'>119</span>    *
<span class='line'>120</span>    * @private
<span class='line'>121</span>    * @type Object
<span class='line'>122</span>    */</span><span class="WHIT">
<span class='line'>123</span> </span><span class="WHIT">  </span><span class="NAME">this.mouse</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="NAME">x</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">buttonDown</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>124</span> 
<span class='line'>125</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>126</span>    * Holds all the PaintWeb extensions.
<span class='line'>127</span>    *
<span class='line'>128</span>    * @type Object
<span class='line'>129</span>    * @see PaintWeb#extensionRegister Register a new extension.
<span class='line'>130</span>    * @see PaintWeb#extensionUnregister Unregister an extension.
<span class='line'>131</span>    * @see PaintWeb.config.extensions Holds the list of extensions to be loaded 
<span class='line'>132</span>    * automatically when PaintWeb is initialized.
<span class='line'>133</span>    */</span><span class="WHIT">
<span class='line'>134</span> </span><span class="WHIT">  </span><span class="NAME">this.extensions</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>135</span> 
<span class='line'>136</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>137</span>    * Holds all the PaintWeb commands. Each property in this object must 
<span class='line'>138</span>    * reference a simple function which can be executed by keyboard shortcuts 
<span class='line'>139</span>    * and/or GUI elements.
<span class='line'>140</span>    *
<span class='line'>141</span>    * @type Object
<span class='line'>142</span>    * @see PaintWeb#commandRegister Register a new command.
<span class='line'>143</span>    * @see PaintWeb#commandUnregister Unregister a command.
<span class='line'>144</span>    */</span><span class="WHIT">
<span class='line'>145</span> </span><span class="WHIT">  </span><span class="NAME">this.commands</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>146</span> 
<span class='line'>147</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>148</span>    * The graphical user interface object instance.
<span class='line'>149</span>    * @type pwlib.gui
<span class='line'>150</span>    */</span><span class="WHIT">
<span class='line'>151</span> </span><span class="WHIT">  </span><span class="NAME">this.gui</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>152</span> 
<span class='line'>153</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>154</span>    * The document element PaintWeb is working with.
<span class='line'>155</span>    *
<span class='line'>156</span>    * @private
<span class='line'>157</span>    * @type Document
<span class='line'>158</span>    * @default document
<span class='line'>159</span>    */</span><span class="WHIT">
<span class='line'>160</span> </span><span class="WHIT">  </span><span class="NAME">this.doc</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>161</span> 
<span class='line'>162</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>163</span>    * The window object PaintWeb is working with.
<span class='line'>164</span>    *
<span class='line'>165</span>    * @private
<span class='line'>166</span>    * @type Window
<span class='line'>167</span>    * @default window
<span class='line'>168</span>    */</span><span class="WHIT">
<span class='line'>169</span> </span><span class="WHIT">  </span><span class="NAME">this.win</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">win</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>170</span> 
<span class='line'>171</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>172</span>    * Holds image information: width, height, zoom and more.
<span class='line'>173</span>    *
<span class='line'>174</span>    * @type Object
<span class='line'>175</span>    */</span><span class="WHIT">
<span class='line'>176</span> </span><span class="WHIT">  </span><span class="NAME">this.image</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>177</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>178</span>      * Image width.
<span class='line'>179</span>      *
<span class='line'>180</span>      * @type Number
<span class='line'>181</span>      */</span><span class="WHIT">
<span class='line'>182</span> </span><span class="WHIT">    </span><span class="NAME">width</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>183</span> 
<span class='line'>184</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>185</span>      * Image height.
<span class='line'>186</span>      *
<span class='line'>187</span>      * @type Number
<span class='line'>188</span>      */</span><span class="WHIT">
<span class='line'>189</span> </span><span class="WHIT">    </span><span class="NAME">height</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>190</span> 
<span class='line'>191</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>192</span>      * Image zoom level. This property holds the current image zoom level used 
<span class='line'>193</span>      * by the user for viewing the image.
<span class='line'>194</span>      *
<span class='line'>195</span>      * @type Number
<span class='line'>196</span>      * @default 1
<span class='line'>197</span>      */</span><span class="WHIT">
<span class='line'>198</span> </span><span class="WHIT">    </span><span class="NAME">zoom</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>199</span> 
<span class='line'>200</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>201</span>      * Image scaling. The canvas elements are scaled from CSS using this value 
<span class='line'>202</span>      * as the scaling factor. This value is dependant on the browser rendering 
<span class='line'>203</span>      * resolution and on the user-defined image zoom level.
<span class='line'>204</span>      *
<span class='line'>205</span>      * @type Number
<span class='line'>206</span>      * @default 1
<span class='line'>207</span>      */</span><span class="WHIT">
<span class='line'>208</span> </span><span class="WHIT">    </span><span class="NAME">canvasScale</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>209</span> 
<span class='line'>210</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>211</span>      * Tells if the current image has been modified since the initial load.
<span class='line'>212</span>      *
<span class='line'>213</span>      * @type Boolean
<span class='line'>214</span>      * @default false
<span class='line'>215</span>      */</span><span class="WHIT">
<span class='line'>216</span> </span><span class="WHIT">    </span><span class="NAME">modified</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="WHIT">
<span class='line'>217</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>218</span> 
<span class='line'>219</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>220</span>    * Resolution information.
<span class='line'>221</span>    *
<span class='line'>222</span>    * @type Object
<span class='line'>223</span>    */</span><span class="WHIT">
<span class='line'>224</span> </span><span class="WHIT">  </span><span class="NAME">this.resolution</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>225</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>226</span>      * The DOM element holding information about the current browser rendering 
<span class='line'>227</span>      * settings (zoom / DPI).
<span class='line'>228</span>      *
<span class='line'>229</span>      * @private
<span class='line'>230</span>      * @type Element
<span class='line'>231</span>      */</span><span class="WHIT">
<span class='line'>232</span> </span><span class="WHIT">    </span><span class="NAME">elem</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>233</span> 
<span class='line'>234</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>235</span>      * The ID of the DOM element holding information about the current browser 
<span class='line'>236</span>      * rendering settings (zoom / DPI).
<span class='line'>237</span>      *
<span class='line'>238</span>      * @private
<span class='line'>239</span>      * @type String
<span class='line'>240</span>      * @default 'paintweb_resInfo'
<span class='line'>241</span>      */</span><span class="WHIT">
<span class='line'>242</span> </span><span class="WHIT">    </span><span class="NAME">elemId</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'paintweb_resInfo'</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>243</span> 
<span class='line'>244</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>245</span>      * The styling necessary for the DOM element.
<span class='line'>246</span>      *
<span class='line'>247</span>      * @private
<span class='line'>248</span>      * @type String
<span class='line'>249</span>      */</span><span class="WHIT">
<span class='line'>250</span> </span><span class="WHIT">    </span><span class="NAME">cssText</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'@media screen and (resolution:96dpi){'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>251</span> </span><span class="WHIT">             </span><span class="STRN">'#paintweb_resInfo{width:96px}}'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>252</span> </span><span class="WHIT">             </span><span class="STRN">'@media screen and (resolution:134dpi){'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>253</span> </span><span class="WHIT">             </span><span class="STRN">'#paintweb_resInfo{width:134px}}'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>254</span> </span><span class="WHIT">             </span><span class="STRN">'@media screen and (resolution:200dpi){'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>255</span> </span><span class="WHIT">             </span><span class="STRN">'#paintweb_resInfo{width:200px}}'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>256</span> </span><span class="WHIT">             </span><span class="STRN">'@media screen and (resolution:300dpi){'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>257</span> </span><span class="WHIT">             </span><span class="STRN">'#paintweb_resInfo{width:300px}}'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>258</span> </span><span class="WHIT">             </span><span class="STRN">'#paintweb_resInfo{'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>259</span> </span><span class="WHIT">             </span><span class="STRN">'display:block;'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>260</span> </span><span class="WHIT">             </span><span class="STRN">'height:100%;'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>261</span> </span><span class="WHIT">             </span><span class="STRN">'left:-3000px;'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>262</span> </span><span class="WHIT">             </span><span class="STRN">'position:fixed;'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>263</span> </span><span class="WHIT">             </span><span class="STRN">'top:0;'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>264</span> </span><span class="WHIT">             </span><span class="STRN">'visibility:hidden;'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT">
<span class='line'>265</span> </span><span class="WHIT">             </span><span class="STRN">'z-index:-32}'</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>266</span> 
<span class='line'>267</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>268</span>      * Optimal DPI for the canvas elements.
<span class='line'>269</span>      *
<span class='line'>270</span>      * @private
<span class='line'>271</span>      * @type Number
<span class='line'>272</span>      * @default 96
<span class='line'>273</span>      */</span><span class="WHIT">
<span class='line'>274</span> </span><span class="WHIT">    </span><span class="NAME">dpiOptimal</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">96</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>275</span> 
<span class='line'>276</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>277</span>      * The current DPI used by the browser for rendering the entire page.
<span class='line'>278</span>      *
<span class='line'>279</span>      * @type Number
<span class='line'>280</span>      * @default 96
<span class='line'>281</span>      */</span><span class="WHIT">
<span class='line'>282</span> </span><span class="WHIT">    </span><span class="NAME">dpiLocal</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">96</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>283</span> 
<span class='line'>284</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>285</span>      * The current zoom level used by the browser for rendering the entire page.
<span class='line'>286</span>      *
<span class='line'>287</span>      * @type Number
<span class='line'>288</span>      * @default 1
<span class='line'>289</span>      */</span><span class="WHIT">
<span class='line'>290</span> </span><span class="WHIT">    </span><span class="NAME">browserZoom</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>291</span> 
<span class='line'>292</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>293</span>      * The scaling factor used by the browser for rendering the entire page. For 
<span class='line'>294</span>      * example, on Gecko using DPI 200 the scale factor is 2.
<span class='line'>295</span>      *
<span class='line'>296</span>      * @private
<span class='line'>297</span>      * @type Number
<span class='line'>298</span>      * @default -1
<span class='line'>299</span>      */</span><span class="WHIT">
<span class='line'>300</span> </span><span class="WHIT">    </span><span class="NAME">scale</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="WHIT">
<span class='line'>301</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>302</span> 
<span class='line'>303</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>304</span>    * The image history.
<span class='line'>305</span>    *
<span class='line'>306</span>    * @private
<span class='line'>307</span>    * @type Object
<span class='line'>308</span>    */</span><span class="WHIT">
<span class='line'>309</span> </span><span class="WHIT">  </span><span class="NAME">this.history</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>310</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>311</span>      * History position.
<span class='line'>312</span>      *
<span class='line'>313</span>      * @type Number
<span class='line'>314</span>      * @default 0
<span class='line'>315</span>      */</span><span class="WHIT">
<span class='line'>316</span> </span><span class="WHIT">    </span><span class="NAME">pos</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>317</span> 
<span class='line'>318</span> </span><span class="WHIT">    </span><span class="COMM">/**
<span class='line'>319</span>      * The ImageDatas for each history state.
<span class='line'>320</span>      *
<span class='line'>321</span>      * @private
<span class='line'>322</span>      * @type Array
<span class='line'>323</span>      */</span><span class="WHIT">
<span class='line'>324</span> </span><span class="WHIT">    </span><span class="NAME">states</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">]</span><span class="WHIT">
<span class='line'>325</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>326</span> 
<span class='line'>327</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>328</span>    * Tells if the browser supports the Canvas Shadows API.
<span class='line'>329</span>    *
<span class='line'>330</span>    * @type Boolean
<span class='line'>331</span>    * @default true
<span class='line'>332</span>    */</span><span class="WHIT">
<span class='line'>333</span> </span><span class="WHIT">  </span><span class="NAME">this.shadowSupported</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>334</span> 
<span class='line'>335</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>336</span>    * Tells if the current tool allows the drawing of shadows.
<span class='line'>337</span>    *
<span class='line'>338</span>    * @type Boolean
<span class='line'>339</span>    * @default true
<span class='line'>340</span>    */</span><span class="WHIT">
<span class='line'>341</span> </span><span class="WHIT">  </span><span class="NAME">this.shadowAllowed</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>342</span> 
<span class='line'>343</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>344</span>    * Image in the clipboard. This is used when some selection is copy/pasted.  
<span class='line'>345</span>    * 
<span class='line'>346</span>    * @type ImageData
<span class='line'>347</span>    */</span><span class="WHIT">
<span class='line'>348</span> </span><span class="WHIT">  </span><span class="NAME">this.clipboard</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>349</span> 
<span class='line'>350</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>351</span>    * Application initialization state. This property can be in one of the 
<span class='line'>352</span>    * following states:
<span class='line'>353</span>    *
<span class='line'>354</span>    * &lt;ul>
<span class='line'>355</span>    *   &lt;li>{@link PaintWeb.INIT_NOT_STARTED} - The initialization is not 
<span class='line'>356</span>    *   started.
<span class='line'>357</span>    *
<span class='line'>358</span>    *   &lt;li>{@link PaintWeb.INIT_STARTED} - The initialization process is 
<span class='line'>359</span>    *   running.
<span class='line'>360</span>    *
<span class='line'>361</span>    *   &lt;li>{@link PaintWeb.INIT_DONE} - The initialization process has completed 
<span class='line'>362</span>    *   successfully.
<span class='line'>363</span>    *
<span class='line'>364</span>    *   &lt;li>{@link PaintWeb.INIT_ERROR} - The initialization process has failed.
<span class='line'>365</span>    * &lt;/ul>
<span class='line'>366</span>    *
<span class='line'>367</span>    * @type Number
<span class='line'>368</span>    * @default PaintWeb.INIT_NOT_STARTED
<span class='line'>369</span>    */</span><span class="WHIT">
<span class='line'>370</span> </span><span class="WHIT">  </span><span class="NAME">this.initialized</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">PaintWeb.INIT_NOT_STARTED</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>371</span> 
<span class='line'>372</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>373</span>    * Custom application events object.
<span class='line'>374</span>    *
<span class='line'>375</span>    * @type pwlib.appEvents
<span class='line'>376</span>    */</span><span class="WHIT">
<span class='line'>377</span> </span><span class="WHIT">  </span><span class="NAME">this.events</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>378</span> 
<span class='line'>379</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>380</span>    * Unique ID for the current PaintWeb instance.
<span class='line'>381</span>    *
<span class='line'>382</span>    * @type Number
<span class='line'>383</span>    */</span><span class="WHIT">
<span class='line'>384</span> </span><span class="WHIT">  </span><span class="NAME">this.UID</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>385</span> 
<span class='line'>386</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>387</span>    * List of Canvas context properties to save and restore.
<span class='line'>388</span>    *
<span class='line'>389</span>    * &lt;p>When the Canvas is resized the state is lost. Using context.save/restore 
<span class='line'>390</span>    * state does work only in Opera. In Firefox/Gecko and WebKit saved states are 
<span class='line'>391</span>    * lost after resize, so there's no state to restore. As such, PaintWeb has 
<span class='line'>392</span>    * its own simple state save/restore mechanism. The property values are saved 
<span class='line'>393</span>    * into a JavaScript object.
<span class='line'>394</span>    *
<span class='line'>395</span>    * @private
<span class='line'>396</span>    * @type Array
<span class='line'>397</span>    *
<span class='line'>398</span>    * @see PaintWeb#stateSave to save the canvas context state.
<span class='line'>399</span>    * @see PaintWeb#stateRestore to restore a canvas context state.
<span class='line'>400</span>    */</span><span class="WHIT">
<span class='line'>401</span> </span><span class="WHIT">  </span><span class="NAME">this.stateProperties</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="STRN">'strokeStyle'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'fillStyle'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'globalAlpha'</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>402</span>     </span><span class="STRN">'lineWidth'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'lineCap'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'lineJoin'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'miterLimit'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'shadowOffsetX'</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>403</span>     </span><span class="STRN">'shadowOffsetY'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'shadowBlur'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'shadowColor'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'globalCompositeOperation'</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>404</span>     </span><span class="STRN">'font'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'textAlign'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'textBaseline'</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>405</span> 
<span class='line'>406</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>407</span>    * Holds the keyboard event listener object.
<span class='line'>408</span>    *
<span class='line'>409</span>    * @private
<span class='line'>410</span>    * @type pwlib.dom.KeyboardEventListener
<span class='line'>411</span>    * @see pwlib.dom.KeyboardEventListener The class dealing with the 
<span class='line'>412</span>    * cross-browser differences in the DOM keyboard events.
<span class='line'>413</span>    */</span><span class="WHIT">
<span class='line'>414</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">kbListener_</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>415</span> 
<span class='line'>416</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>417</span>    * Holds temporary state information during PaintWeb initialization.
<span class='line'>418</span>    *
<span class='line'>419</span>    * @private
<span class='line'>420</span>    * @type Object
<span class='line'>421</span>    */</span><span class="WHIT">
<span class='line'>422</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">temp_</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="NAME">onInit</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">toolsLoadQueue</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">extensionsLoadQueue</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>423</span> 
<span class='line'>424</span> </span><span class="WHIT">  </span><span class="COMM">// Avoid global scope lookup.</span><span class="WHIT">
<span class='line'>425</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">MathAbs</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">Math.abs</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>426</span> </span><span class="WHIT">      </span><span class="NAME">MathFloor</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">Math.floor</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>427</span> </span><span class="WHIT">      </span><span class="NAME">MathMax</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">Math.max</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>428</span> </span><span class="WHIT">      </span><span class="NAME">MathMin</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">Math.min</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>429</span> </span><span class="WHIT">      </span><span class="NAME">MathRound</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">Math.round</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>430</span> </span><span class="WHIT">      </span><span class="NAME">pwlib</span><span class="WHIT">     </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>431</span> </span><span class="WHIT">      </span><span class="NAME">appEvent</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>432</span> </span><span class="WHIT">      </span><span class="NAME">lang</span><span class="WHIT">      </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.lang</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>433</span> 
<span class='line'>434</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>435</span>    * Element node type constant.
<span class='line'>436</span>    *
<span class='line'>437</span>    * @constant
<span class='line'>438</span>    * @type Number
<span class='line'>439</span>    */</span><span class="WHIT">
<span class='line'>440</span> </span><span class="WHIT">  </span><span class="NAME">this.ELEMENT_NODE</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">window.Node</span><span class="WHIT"> </span><span class="PUNC">?</span><span class="WHIT"> </span><span class="NAME">Node.ELEMENT_NODE</span><span class="WHIT"> </span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>441</span> 
<span class='line'>442</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>443</span>    * PaintWeb pre-initialization code. This runs when the PaintWeb instance is 
<span class='line'>444</span>    * constructed.
<span class='line'>445</span>    * @private
<span class='line'>446</span>    */</span><span class="WHIT">
<span class='line'>447</span> </span><span class="WHIT">  </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="NAME">preInit</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>448</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">d</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">Date</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>449</span> 
<span class='line'>450</span> </span><span class="WHIT">    </span><span class="COMM">// If PaintWeb is running directly from the source code, then the build date </span><span class="WHIT">
<span class='line'>451</span> </span><span class="WHIT">    </span><span class="COMM">// is always today.</span><span class="WHIT">
<span class='line'>452</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">_self.build</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>453</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">dateArr</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="NAME">d.getFullYear</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">d.getMonth</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">+</span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">d.getDate</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>454</span> 
<span class='line'>455</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">dateArr</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">10</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>456</span> </span><span class="WHIT">        </span><span class="NAME">dateArr</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'0'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">dateArr</span><span class="PUNC">[</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>457</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>458</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">dateArr</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">10</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>459</span> </span><span class="WHIT">        </span><span class="NAME">dateArr</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'0'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">dateArr</span><span class="PUNC">[</span><span class="NUMB">2</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>460</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>461</span> 
<span class='line'>462</span> </span><span class="WHIT">      </span><span class="NAME">_self.build</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">dateArr.join</span><span class="PUNC">(</span><span class="STRN">''</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>463</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>464</span> 
<span class='line'>465</span> </span><span class="WHIT">    </span><span class="NAME">_self.UID</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">d.getMilliseconds</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">MathRound</span><span class="PUNC">(</span><span class="NAME">Math.random</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NUMB">100</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>466</span> </span><span class="WHIT">    </span><span class="NAME">_self.elems.head</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.getElementsByTagName</span><span class="PUNC">(</span><span class="STRN">'head'</span><span class="PUNC">)</span><span class="PUNC">[</span><span class="NUMB">0</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">doc.body</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>467</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>468</span> 
<span class='line'>469</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>470</span>    * Initialize PaintWeb.
<span class='line'>471</span>    *
<span class='line'>472</span>    * &lt;p>This method is asynchronous, meaning that it will return much sooner 
<span class='line'>473</span>    * before the application initialization is completed.
<span class='line'>474</span>    *
<span class='line'>475</span>    * @param {Function} [handler] The &lt;code>appInit&lt;/code> event handler. Your 
<span class='line'>476</span>    * event handler will be invoked automatically when PaintWeb completes 
<span class='line'>477</span>    * loading, or when an error occurs.
<span class='line'>478</span>    *
<span class='line'>479</span>    * @returns {Boolean} True if the initialization has been started 
<span class='line'>480</span>    * successfully, or false if not.
<span class='line'>481</span>    */</span><span class="WHIT">
<span class='line'>482</span> </span><span class="WHIT">  </span><span class="NAME">this.init</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">handler</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>483</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.initialized</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">PaintWeb.INIT_DONE</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>484</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>485</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>486</span> 
<span class='line'>487</span> </span><span class="WHIT">    </span><span class="NAME">this.initialized</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">PaintWeb.INIT_STARTED</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>488</span> 
<span class='line'>489</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">handler</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">handler</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'function'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>490</span> </span><span class="WHIT">      </span><span class="KEYW">throw</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">TypeError</span><span class="PUNC">(</span><span class="NAME">lang.initHandlerMustBeFunction</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>491</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>492</span> 
<span class='line'>493</span> </span><span class="WHIT">    </span><span class="NAME">temp_.onInit</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">handler</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>494</span> 
<span class='line'>495</span> </span><span class="WHIT">    </span><span class="COMM">// Check Canvas support.</span><span class="WHIT">
<span class='line'>496</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'canvas'</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">getContext</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>497</span> </span><span class="WHIT">      </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.noCanvasSupport</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>498</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>499</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>500</span> 
<span class='line'>501</span> </span><span class="WHIT">    </span><span class="COMM">// Basic functionality used within the Web application.</span><span class="WHIT">
<span class='line'>502</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">window.getComputedStyle</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>503</span> </span><span class="WHIT">      </span><span class="KEYW">try</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>504</span> </span><span class="WHIT">        </span><span class="NAME">win.getComputedStyle</span><span class="PUNC">(</span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'div'</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>505</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">catch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">err</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>506</span> </span><span class="WHIT">        </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.noComputedStyle</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>507</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>508</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>509</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>510</span> 
<span class='line'>511</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">window.XMLHttpRequest</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>512</span> </span><span class="WHIT">      </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.noXMLHttpRequest</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>513</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>514</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>515</span> 
<span class='line'>516</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">this.config.configFile</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>517</span> </span><span class="WHIT">      </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.noConfigFile</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>518</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>519</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>520</span> 
<span class='line'>521</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">this.config.guiPlaceholder</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'object'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> 
<span class='line'>522</span>         </span><span class="NAME">this.config.guiPlaceholder.nodeType</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">this.ELEMENT_NODE</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>523</span> </span><span class="WHIT">      </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.guiPlaceholderWrong</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>524</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>525</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>526</span> 
<span class='line'>527</span> </span><span class="WHIT">    </span><span class="COMM">// Silently ignore any wrong value for the config.imageLoad property.</span><span class="WHIT">
<span class='line'>528</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">this.config.imageLoad</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'object'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> 
<span class='line'>529</span>         </span><span class="NAME">this.config.imageLoad.nodeType</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">this.ELEMENT_NODE</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>530</span> </span><span class="WHIT">      </span><span class="NAME">this.config.imageLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>531</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>532</span> 
<span class='line'>533</span> </span><span class="WHIT">    </span><span class="COMM">// JSON parser and serializer.</span><span class="WHIT">
<span class='line'>534</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">window.JSON</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>535</span> </span><span class="WHIT">      </span><span class="NAME">this.scriptLoad</span><span class="PUNC">(</span><span class="NAME">PaintWeb.baseFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'includes/json2.js'</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>536</span>           </span><span class="NAME">this.jsonlibReady</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>537</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>538</span> </span><span class="WHIT">      </span><span class="NAME">this.jsonlibReady</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>539</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>540</span> 
<span class='line'>541</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>542</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>543</span> 
<span class='line'>544</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>545</span>    * The &lt;code>load&lt;/code> event handler for the JSON library script.
<span class='line'>546</span>    * @private
<span class='line'>547</span>    */</span><span class="WHIT">
<span class='line'>548</span> </span><span class="WHIT">  </span><span class="NAME">this.jsonlibReady</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>549</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">window.pwlib</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>550</span> </span><span class="WHIT">      </span><span class="NAME">_self.pwlibReady</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>551</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>552</span> </span><span class="WHIT">      </span><span class="NAME">_self.scriptLoad</span><span class="PUNC">(</span><span class="NAME">PaintWeb.baseFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'includes/lib.js'</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>553</span>           </span><span class="NAME">_self.pwlibReady</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>554</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>555</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>556</span> 
<span class='line'>557</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>558</span>    * The &lt;code>load&lt;/code> event handler for the PaintWeb library script.
<span class='line'>559</span>    * @private
<span class='line'>560</span>    */</span><span class="WHIT">
<span class='line'>561</span> </span><span class="WHIT">  </span><span class="NAME">this.pwlibReady</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>562</span> </span><span class="WHIT">    </span><span class="NAME">pwlib</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">window.pwlib</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>563</span> </span><span class="WHIT">    </span><span class="NAME">appEvent</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pwlib.appEvent</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>564</span> 
<span class='line'>565</span> </span><span class="WHIT">    </span><span class="COMM">// Create the custom application events object.</span><span class="WHIT">
<span class='line'>566</span> </span><span class="WHIT">    </span><span class="NAME">_self.events</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">pwlib.appEvents</span><span class="PUNC">(</span><span class="NAME">_self</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>567</span> </span><span class="WHIT">    </span><span class="NAME">_self.configLoad</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>568</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>569</span> 
<span class='line'>570</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>571</span>    * Report an initialization error.
<span class='line'>572</span>    *
<span class='line'>573</span>    * &lt;p>This method dispatches the {@link pwlib.appEvent.appInit} event.
<span class='line'>574</span>    *
<span class='line'>575</span>    * @private
<span class='line'>576</span>    *
<span class='line'>577</span>    * @param {String} msg The error message.
<span class='line'>578</span>    *
<span class='line'>579</span>    * @see pwlib.appEvent.appInit
<span class='line'>580</span>    */</span><span class="WHIT">
<span class='line'>581</span> </span><span class="WHIT">  </span><span class="NAME">this.initError</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">msg</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>582</span> </span><span class="WHIT">    </span><span class="KEYW">switch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.initialized</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>583</span> </span><span class="WHIT">      </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="NAME">PaintWeb.INIT_ERROR</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>584</span> </span><span class="WHIT">      </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="NAME">PaintWeb.INIT_DONE</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>585</span> </span><span class="WHIT">      </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="NAME">PaintWeb.INIT_NOT_STARTED</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>586</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>587</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>588</span> 
<span class='line'>589</span> </span><span class="WHIT">    </span><span class="NAME">this.initialized</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">PaintWeb.INIT_ERROR</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>590</span> 
<span class='line'>591</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>592</span> 
<span class='line'>593</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.events</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="STRN">'dispatch'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.events</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>594</span> </span><span class="WHIT">        </span><span class="NAME">appEvent</span><span class="WHIT">    </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="STRN">'appInit'</span><span class="WHIT">  </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">appEvent</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>595</span> 
<span class='line'>596</span> </span><span class="WHIT">      </span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.appInit</span><span class="PUNC">(</span><span class="NAME">this.initialized</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">msg</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>597</span> </span><span class="WHIT">      </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>598</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>599</span> 
<span class='line'>600</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">temp_.onInit</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'function'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>601</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>602</span> </span><span class="WHIT">        </span><span class="COMM">// fake an event dispatch.</span><span class="WHIT">
<span class='line'>603</span> </span><span class="WHIT">        </span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="NAME">type</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'appInit'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">state</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">this.initialized</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">errorMessage</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">msg</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>604</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>605</span> 
<span class='line'>606</span> </span><span class="WHIT">      </span><span class="NAME">temp_.onInit.call</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>607</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>608</span> 
<span class='line'>609</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.config.showErrors</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>610</span> </span><span class="WHIT">      </span><span class="NAME">alert</span><span class="PUNC">(</span><span class="NAME">msg</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>611</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">window.console</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">console.log</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>612</span> </span><span class="WHIT">      </span><span class="NAME">console.log</span><span class="PUNC">(</span><span class="NAME">msg</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>613</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>614</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>615</span> 
<span class='line'>616</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>617</span>    * Asynchronously load the configuration file. This method issues an 
<span class='line'>618</span>    * XMLHttpRequest to load the JSON file.
<span class='line'>619</span>    *
<span class='line'>620</span>    * @private
<span class='line'>621</span>    *
<span class='line'>622</span>    * @see PaintWeb.config.configFile The configuration file.
<span class='line'>623</span>    * @see pwlib.xhrLoad The library function being used for creating the 
<span class='line'>624</span>    * XMLHttpRequest object.
<span class='line'>625</span>    */</span><span class="WHIT">
<span class='line'>626</span> </span><span class="WHIT">  </span><span class="NAME">this.configLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>627</span> </span><span class="WHIT">    </span><span class="NAME">pwlib.xhrLoad</span><span class="PUNC">(</span><span class="NAME">PaintWeb.baseFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">this.config.configFile</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>628</span>         </span><span class="NAME">this.configReady</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>629</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>630</span> 
<span class='line'>631</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>632</span>    * The configuration reader. This is the event handler for the XMLHttpRequest 
<span class='line'>633</span>    * object, for the &lt;code>onreadystatechange&lt;/code> event.
<span class='line'>634</span>    *
<span class='line'>635</span>    * @private
<span class='line'>636</span>    *
<span class='line'>637</span>    * @param {XMLHttpRequest} xhr The XMLHttpRequest object being handled.
<span class='line'>638</span>    *
<span class='line'>639</span>    * @see PaintWeb#configLoad The method which issues the XMLHttpRequest request 
<span class='line'>640</span>    * for loading the configuration file.
<span class='line'>641</span>    */</span><span class="WHIT">
<span class='line'>642</span> </span><span class="WHIT">  </span><span class="NAME">this.configReady</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">xhr</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>643</span> </span><span class="WHIT">    </span><span class="COMM">/*
<span class='line'>644</span>      * readyState values:
<span class='line'>645</span>      *   0 UNINITIALIZED open() has not been called yet.
<span class='line'>646</span>      *   1 LOADING send() has not been called yet.
<span class='line'>647</span>      *   2 LOADED send() has been called, headers and status are available.
<span class='line'>648</span>      *   3 INTERACTIVE Downloading, responseText holds the partial data.
<span class='line'>649</span>      *   4 COMPLETED Finished with all operations.
<span class='line'>650</span>      */</span><span class="WHIT">
<span class='line'>651</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">xhr</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">xhr.readyState</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">4</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>652</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>653</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>654</span> 
<span class='line'>655</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">(</span><span class="NAME">xhr.status</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">304</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">xhr.status</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">200</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">xhr.responseText</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>656</span> </span><span class="WHIT">      </span><span class="NAME">_self.initError</span><span class="PUNC">(</span><span class="NAME">lang.failedConfigLoad</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>657</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>658</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>659</span> 
<span class='line'>660</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">config</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pwlib.jsonParse</span><span class="PUNC">(</span><span class="NAME">xhr.responseText</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>661</span> </span><span class="WHIT">    </span><span class="NAME">pwlib.extend</span><span class="PUNC">(</span><span class="NAME">_self.config</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">config</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>662</span> 
<span class='line'>663</span> </span><span class="WHIT">    </span><span class="NAME">_self.langLoad</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>664</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>665</span> 
<span class='line'>666</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>667</span>    * Asynchronously load the language file. This method issues an XMLHttpRequest 
<span class='line'>668</span>    * to load the JSON file.
<span class='line'>669</span>    *
<span class='line'>670</span>    * @private
<span class='line'>671</span>    *
<span class='line'>672</span>    * @see PaintWeb.config.lang The language you want for the PaintWeb user 
<span class='line'>673</span>    * interface.
<span class='line'>674</span>    * @see pwlib.xhrLoad The library function being used for creating the 
<span class='line'>675</span>    * XMLHttpRequest object.
<span class='line'>676</span>    */</span><span class="WHIT">
<span class='line'>677</span> </span><span class="WHIT">  </span><span class="NAME">this.langLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>678</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config.lang</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>679</span> </span><span class="WHIT">        </span><span class="NAME">file</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">PaintWeb.baseFolder</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>680</span> 
<span class='line'>681</span> </span><span class="WHIT">    </span><span class="COMM">// If the language is not available, always fallback to English.</span><span class="WHIT">
<span class='line'>682</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="PUNC">(</span><span class="NAME">id</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.config.languages</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>683</span> </span><span class="WHIT">      </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config.lang</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'en'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>684</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>685</span> 
<span class='line'>686</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'file'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.config.languages</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>687</span> </span><span class="WHIT">      </span><span class="NAME">file</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config.languages</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">.</span><span class="NAME">file</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>688</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>689</span> </span><span class="WHIT">      </span><span class="NAME">file</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config.langFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'/'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'.json'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>690</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>691</span> 
<span class='line'>692</span> </span><span class="WHIT">    </span><span class="NAME">pwlib.xhrLoad</span><span class="PUNC">(</span><span class="NAME">file</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.langReady</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>693</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>694</span> 
<span class='line'>695</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>696</span>    * The language file reader. This is the event handler for the XMLHttpRequest 
<span class='line'>697</span>    * object, for the &lt;code>onreadystatechange&lt;/code> event.
<span class='line'>698</span>    *
<span class='line'>699</span>    * @private
<span class='line'>700</span>    *
<span class='line'>701</span>    * @param {XMLHttpRequest} xhr The XMLHttpRequest object being handled.
<span class='line'>702</span>    *
<span class='line'>703</span>    * @see PaintWeb#langLoad The method which issues the XMLHttpRequest request 
<span class='line'>704</span>    * for loading the language file.
<span class='line'>705</span>    */</span><span class="WHIT">
<span class='line'>706</span> </span><span class="WHIT">  </span><span class="NAME">this.langReady</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">xhr</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>707</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">xhr</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">xhr.readyState</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">4</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>708</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>709</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>710</span> 
<span class='line'>711</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">(</span><span class="NAME">xhr.status</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">304</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">xhr.status</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">200</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">xhr.responseText</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>712</span> </span><span class="WHIT">      </span><span class="NAME">_self.initError</span><span class="PUNC">(</span><span class="NAME">lang.failedLangLoad</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>713</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>714</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>715</span> 
<span class='line'>716</span> </span><span class="WHIT">    </span><span class="NAME">pwlib.extend</span><span class="PUNC">(</span><span class="NAME">_self.lang</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pwlib.jsonParse</span><span class="PUNC">(</span><span class="NAME">xhr.responseText</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>717</span> 
<span class='line'>718</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">_self.initCanvas</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">_self.initContext</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>719</span> </span><span class="WHIT">      </span><span class="COMM">// Start GUI load now.</span><span class="WHIT">
<span class='line'>720</span> </span><span class="WHIT">      </span><span class="NAME">_self.guiLoad</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>721</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>722</span> </span><span class="WHIT">      </span><span class="NAME">_self.initError</span><span class="PUNC">(</span><span class="NAME">lang.errorInitCanvas</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>723</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>724</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>725</span> 
<span class='line'>726</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>727</span>    * Initialize the PaintWeb commands.
<span class='line'>728</span>    *
<span class='line'>729</span>    * @private
<span class='line'>730</span>    * @returns {Boolean} True if the initialization was successful, or false if 
<span class='line'>731</span>    * not.
<span class='line'>732</span>    */</span><span class="WHIT">
<span class='line'>733</span> </span><span class="WHIT">  </span><span class="NAME">this.initCommands</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>734</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'historyUndo'</span><span class="PUNC">,</span><span class="WHIT">    </span><span class="NAME">this.historyUndo</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>735</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'historyRedo'</span><span class="PUNC">,</span><span class="WHIT">    </span><span class="NAME">this.historyRedo</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>736</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'selectAll'</span><span class="PUNC">,</span><span class="WHIT">      </span><span class="NAME">this.selectAll</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>737</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'selectionCut'</span><span class="PUNC">,</span><span class="WHIT">   </span><span class="NAME">this.selectionCut</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>738</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'selectionCopy'</span><span class="PUNC">,</span><span class="WHIT">  </span><span class="NAME">this.selectionCopy</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>739</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'clipboardPaste'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.clipboardPaste</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>740</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'imageSave'</span><span class="PUNC">,</span><span class="WHIT">      </span><span class="NAME">this.imageSave</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>741</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'imageClear'</span><span class="PUNC">,</span><span class="WHIT">     </span><span class="NAME">this.imageClear</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>742</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'swapFillStroke'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.swapFillStroke</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>743</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'imageZoomIn'</span><span class="PUNC">,</span><span class="WHIT">    </span><span class="NAME">this.imageZoomIn</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>744</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'imageZoomOut'</span><span class="PUNC">,</span><span class="WHIT">   </span><span class="NAME">this.imageZoomOut</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>745</span> </span><span class="WHIT">        </span><span class="NAME">this.commandRegister</span><span class="PUNC">(</span><span class="STRN">'imageZoomReset'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.imageZoomReset</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>746</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>747</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>748</span> </span><span class="WHIT">      </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.errorInitCommands</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>749</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>750</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>751</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>752</span> 
<span class='line'>753</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>754</span>    * Load th PaintWeb GUI. This method loads the GUI markup file, the stylesheet 
<span class='line'>755</span>    * and the script.
<span class='line'>756</span>    *
<span class='line'>757</span>    * @private
<span class='line'>758</span>    *
<span class='line'>759</span>    * @see PaintWeb.config.guiStyle The interface style file.
<span class='line'>760</span>    * @see PaintWeb.config.guiScript The interface script file.
<span class='line'>761</span>    * @see pwlib.gui The interface object.
<span class='line'>762</span>    */</span><span class="WHIT">
<span class='line'>763</span> </span><span class="WHIT">  </span><span class="NAME">this.guiLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>764</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cfg</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>765</span> </span><span class="WHIT">        </span><span class="NAME">gui</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config.gui</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>766</span> </span><span class="WHIT">        </span><span class="NAME">base</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">PaintWeb.baseFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">cfg.interfacesFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'/'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">gui</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'/'</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>767</span> </span><span class="WHIT">        </span><span class="NAME">style</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">base</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">cfg.guiStyle</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>768</span> </span><span class="WHIT">        </span><span class="NAME">script</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">base</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">cfg.guiScript</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>769</span> 
<span class='line'>770</span> </span><span class="WHIT">    </span><span class="NAME">this.styleLoad</span><span class="PUNC">(</span><span class="NAME">gui</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'style'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">style</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>771</span> 
<span class='line'>772</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pwlib.gui</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>773</span> </span><span class="WHIT">      </span><span class="NAME">this.guiScriptReady</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>774</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>775</span> </span><span class="WHIT">      </span><span class="NAME">this.scriptLoad</span><span class="PUNC">(</span><span class="NAME">script</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.guiScriptReady</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>776</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>777</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>778</span> 
<span class='line'>779</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>780</span>    * The &lt;code>load&lt;/code> event handler for the PaintWeb GUI script. This 
<span class='line'>781</span>    * method creates an instance of the GUI object that just loaded and starts 
<span class='line'>782</span>    * loading the GUI markup.
<span class='line'>783</span>    *
<span class='line'>784</span>    * @private
<span class='line'>785</span>    *
<span class='line'>786</span>    * @see PaintWeb.config.guiScript The interface script file.
<span class='line'>787</span>    * @see PaintWeb.config.guiMarkup The interface markup file.
<span class='line'>788</span>    * @see pwlib.gui The interface object.
<span class='line'>789</span>    * @see pwlib.xhrLoad The library function being used for creating the 
<span class='line'>790</span>    * XMLHttpRequest object.
<span class='line'>791</span>    */</span><span class="WHIT">
<span class='line'>792</span> </span><span class="WHIT">  </span><span class="NAME">this.guiScriptReady</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>793</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cfg</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>794</span> </span><span class="WHIT">        </span><span class="NAME">gui</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config.gui</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>795</span> </span><span class="WHIT">        </span><span class="NAME">base</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.interfacesFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'/'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">gui</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'/'</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>796</span> </span><span class="WHIT">        </span><span class="NAME">markup</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">base</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">cfg.guiMarkup</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>797</span> 
<span class='line'>798</span> </span><span class="WHIT">    </span><span class="NAME">_self.gui</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">pwlib.gui</span><span class="PUNC">(</span><span class="NAME">_self</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>799</span> 
<span class='line'>800</span> </span><span class="WHIT">    </span><span class="COMM">// Check if the interface markup is cached already.</span><span class="WHIT">
<span class='line'>801</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">markup</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">pwlib.fileCache</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>802</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">_self.gui.init</span><span class="PUNC">(</span><span class="NAME">pwlib.fileCache</span><span class="PUNC">[</span><span class="NAME">markup</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>803</span> </span><span class="WHIT">        </span><span class="NAME">_self.initTools</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>804</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>805</span> </span><span class="WHIT">        </span><span class="NAME">_self.initError</span><span class="PUNC">(</span><span class="NAME">lang.errorInitGUI</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>806</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>807</span> 
<span class='line'>808</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>809</span> </span><span class="WHIT">      </span><span class="NAME">pwlib.xhrLoad</span><span class="PUNC">(</span><span class="NAME">PaintWeb.baseFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">markup</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">_self.guiMarkupReady</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>810</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>811</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>812</span> 
<span class='line'>813</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>814</span>    * The GUI markup reader. This is the event handler for the XMLHttpRequest 
<span class='line'>815</span>    * object, for the &lt;code>onreadystatechange&lt;/code> event.
<span class='line'>816</span>    *
<span class='line'>817</span>    * @private
<span class='line'>818</span>    *
<span class='line'>819</span>    * @param {XMLHttpRequest} xhr The XMLHttpRequest object being handled.
<span class='line'>820</span>    *
<span class='line'>821</span>    * @see PaintWeb#guiScriptReady The method which issues the XMLHttpRequest 
<span class='line'>822</span>    * request for loading the interface markup file.
<span class='line'>823</span>    */</span><span class="WHIT">
<span class='line'>824</span> </span><span class="WHIT">  </span><span class="NAME">this.guiMarkupReady</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">xhr</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>825</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">xhr</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">xhr.readyState</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">4</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>826</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>827</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>828</span> 
<span class='line'>829</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">xhr.status</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">304</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">xhr.status</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">200</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>830</span> </span><span class="WHIT">      </span><span class="NAME">_self.initError</span><span class="PUNC">(</span><span class="NAME">lang.failedMarkupLoad</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>831</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>832</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>833</span> 
<span class='line'>834</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">param</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>835</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">xhr.responseXML</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">xhr.responseXML.documentElement</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>836</span> </span><span class="WHIT">      </span><span class="NAME">param</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">xhr.responseXML</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>837</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">xhr.responseText</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>838</span> </span><span class="WHIT">      </span><span class="NAME">param</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">xhr.responseText</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>839</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>840</span> </span><span class="WHIT">      </span><span class="NAME">_self.initError</span><span class="PUNC">(</span><span class="NAME">lang.failedMarkupLoad</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>841</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>842</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>843</span> 
<span class='line'>844</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">_self.gui.init</span><span class="PUNC">(</span><span class="NAME">param</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>845</span> </span><span class="WHIT">      </span><span class="NAME">_self.initTools</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>846</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>847</span> </span><span class="WHIT">      </span><span class="NAME">_self.initError</span><span class="PUNC">(</span><span class="NAME">lang.errorInitGUI</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>848</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>849</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>850</span> 
<span class='line'>851</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>852</span>    * Initialize the Canvas elements. This method creates the elements and 
<span class='line'>853</span>    * sets-up their dimensions.
<span class='line'>854</span>    *
<span class='line'>855</span>    * &lt;p>The layer Canvas element will have the background rendered with the 
<span class='line'>856</span>    * color from {@link PaintWeb.config.backgroundColor}.
<span class='line'>857</span>    * 
<span class='line'>858</span>    * &lt;p>If {@link PaintWeb.config.imageLoad} is defined, then the image element 
<span class='line'>859</span>    * is inserted into the Canvas image.
<span class='line'>860</span>    *
<span class='line'>861</span>    * &lt;p>All the Canvas event listeners are also attached to the buffer Canvas 
<span class='line'>862</span>    * element.
<span class='line'>863</span>    *
<span class='line'>864</span>    * @private
<span class='line'>865</span>    * @returns {Boolean} True if the initialization was successful, or false if 
<span class='line'>866</span>    * not.
<span class='line'>867</span>    *
<span class='line'>868</span>    * @see PaintWeb#ev_canvas The global Canvas events handler.
<span class='line'>869</span>    */</span><span class="WHIT">
<span class='line'>870</span> </span><span class="WHIT">  </span><span class="NAME">this.initCanvas</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>871</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cfg</span><span class="WHIT">           </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>872</span> </span><span class="WHIT">        </span><span class="NAME">res</span><span class="WHIT">           </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.resolution</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>873</span> </span><span class="WHIT">        </span><span class="NAME">resInfo</span><span class="WHIT">       </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.getElementById</span><span class="PUNC">(</span><span class="NAME">res.elemId</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>874</span> </span><span class="WHIT">        </span><span class="NAME">layerCanvas</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'canvas'</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>875</span> </span><span class="WHIT">        </span><span class="NAME">bufferCanvas</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'canvas'</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>876</span> </span><span class="WHIT">        </span><span class="NAME">layerContext</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.getContext</span><span class="PUNC">(</span><span class="STRN">'2d'</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>877</span> </span><span class="WHIT">        </span><span class="NAME">bufferContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">bufferCanvas.getContext</span><span class="PUNC">(</span><span class="STRN">'2d'</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>878</span> </span><span class="WHIT">        </span><span class="NAME">width</span><span class="WHIT">         </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.imageWidth</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>879</span> </span><span class="WHIT">        </span><span class="NAME">height</span><span class="WHIT">        </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.imageHeight</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>880</span> </span><span class="WHIT">        </span><span class="NAME">imageLoad</span><span class="WHIT">     </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.imageLoad</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>881</span> 
<span class='line'>882</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">resInfo</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>883</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">style</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'style'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>884</span> </span><span class="WHIT">      </span><span class="NAME">style.type</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'text/css'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>885</span> </span><span class="WHIT">      </span><span class="NAME">style.appendChild</span><span class="PUNC">(</span><span class="NAME">doc.createTextNode</span><span class="PUNC">(</span><span class="NAME">res.cssText</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>886</span> </span><span class="WHIT">      </span><span class="NAME">_self.elems.head.appendChild</span><span class="PUNC">(</span><span class="NAME">style</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>887</span> 
<span class='line'>888</span> </span><span class="WHIT">      </span><span class="NAME">resInfo</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'div'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>889</span> </span><span class="WHIT">      </span><span class="NAME">resInfo.id</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">res.elemId</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>890</span> </span><span class="WHIT">      </span><span class="NAME">doc.body.appendChild</span><span class="PUNC">(</span><span class="NAME">resInfo</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>891</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>892</span> 
<span class='line'>893</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">resInfo</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>894</span> </span><span class="WHIT">      </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.errorInitCanvas</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>895</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>896</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>897</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">layerCanvas</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">bufferCanvas</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">layerContext</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">bufferContext</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>898</span> </span><span class="WHIT">      </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.noCanvasSupport</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>899</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>900</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>901</span> 
<span class='line'>902</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">pwlib.isSameHost</span><span class="PUNC">(</span><span class="NAME">imageLoad.src</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">win.location.host</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>903</span> </span><span class="WHIT">      </span><span class="NAME">cfg.imageLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">imageLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>904</span> </span><span class="WHIT">      </span><span class="NAME">alert</span><span class="PUNC">(</span><span class="NAME">lang.imageLoadDifferentHost</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>905</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>906</span> 
<span class='line'>907</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">imageLoad</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>908</span> </span><span class="WHIT">      </span><span class="NAME">width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">imageLoad.width</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>909</span> </span><span class="WHIT">      </span><span class="NAME">height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">imageLoad.height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>910</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>911</span> 
<span class='line'>912</span> </span><span class="WHIT">    </span><span class="NAME">res.elem</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">resInfo</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>913</span> 
<span class='line'>914</span> </span><span class="WHIT">    </span><span class="NAME">this.image.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">bufferCanvas.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>915</span> </span><span class="WHIT">    </span><span class="NAME">this.image.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">bufferCanvas.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">height</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>916</span> 
<span class='line'>917</span> </span><span class="WHIT">    </span><span class="NAME">this.layer.canvas</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>918</span> </span><span class="WHIT">    </span><span class="NAME">this.layer.context</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerContext</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>919</span> </span><span class="WHIT">    </span><span class="NAME">this.buffer.canvas</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">bufferCanvas</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>920</span> </span><span class="WHIT">    </span><span class="NAME">this.buffer.context</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">bufferContext</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>921</span> 
<span class='line'>922</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">imageLoad</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>923</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.drawImage</span><span class="PUNC">(</span><span class="NAME">imageLoad</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>924</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>925</span> </span><span class="WHIT">      </span><span class="COMM">// Set the configured background color.</span><span class="WHIT">
<span class='line'>926</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerContext.fillStyle</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>927</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.backgroundColor</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>928</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.fillRect</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">width</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>929</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">fillStyle</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>930</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>931</span> 
<span class='line'>932</span> </span><span class="WHIT">    </span><span class="COMM">/*
<span class='line'>933</span>      * Setup the event listeners for the canvas element.
<span class='line'>934</span>      *
<span class='line'>935</span>      * The event handler (ev_canvas) calls the event handlers associated with 
<span class='line'>936</span>      * the active tool (e.g. tool.mousemove).
<span class='line'>937</span>      */</span><span class="WHIT">
<span class='line'>938</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">events</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="STRN">'dblclick'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'click'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'mousedown'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'mouseup'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'mousemove'</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>939</span>         </span><span class="STRN">'contextmenu'</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>940</span> </span><span class="WHIT">        </span><span class="NAME">n</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">events.length</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>941</span> 
<span class='line'>942</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">n</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>943</span> </span><span class="WHIT">      </span><span class="NAME">bufferCanvas.addEventListener</span><span class="PUNC">(</span><span class="NAME">events</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.ev_canvas</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>944</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>945</span> 
<span class='line'>946</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>947</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>948</span> 
<span class='line'>949</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>950</span>    * Initialize the Canvas buffer context. This method updates the context 
<span class='line'>951</span>    * properties to reflect the values defined in the PaintWeb configuration 
<span class='line'>952</span>    * file.
<span class='line'>953</span>    * 
<span class='line'>954</span>    * &lt;p>Shadows support is also determined. The {@link PaintWeb#shadowSupported} 
<span class='line'>955</span>    * value is updated accordingly.
<span class='line'>956</span>    *
<span class='line'>957</span>    * @private
<span class='line'>958</span>    * @returns {Boolean} True if the initialization was successful, or false if 
<span class='line'>959</span>    * not.
<span class='line'>960</span>    */</span><span class="WHIT">
<span class='line'>961</span> </span><span class="WHIT">  </span><span class="NAME">this.initContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>962</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">bufferContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.buffer.context</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>963</span> 
<span class='line'>964</span> </span><span class="WHIT">    </span><span class="COMM">// Opera does not render shadows, at the moment.</span><span class="WHIT">
<span class='line'>965</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">pwlib.browser.opera</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">bufferContext.shadowColor</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="STRN">'shadowOffsetX'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> 
<span class='line'>966</span>         </span><span class="NAME">bufferContext</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="STRN">'shadowOffsetY'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">bufferContext</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="STRN">'shadowBlur'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> 
<span class='line'>967</span>         </span><span class="NAME">bufferContext</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>968</span> </span><span class="WHIT">      </span><span class="NAME">this.shadowSupported</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>969</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>970</span> </span><span class="WHIT">      </span><span class="NAME">this.shadowSupported</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>971</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>972</span> 
<span class='line'>973</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cfg</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>974</span> </span><span class="WHIT">        </span><span class="NAME">props</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>975</span> </span><span class="WHIT">          </span><span class="NAME">fillStyle</span><span class="PUNC">:</span><span class="WHIT">    </span><span class="NAME">cfg.fillStyle</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>976</span> </span><span class="WHIT">          </span><span class="NAME">font</span><span class="PUNC">:</span><span class="WHIT">         </span><span class="NAME">cfg.text.fontSize</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'px '</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">cfg.text.fontFamily</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>977</span> </span><span class="WHIT">          </span><span class="NAME">lineCap</span><span class="PUNC">:</span><span class="WHIT">      </span><span class="NAME">cfg.line.lineCap</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>978</span> </span><span class="WHIT">          </span><span class="NAME">lineJoin</span><span class="PUNC">:</span><span class="WHIT">     </span><span class="NAME">cfg.line.lineJoin</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>979</span> </span><span class="WHIT">          </span><span class="NAME">lineWidth</span><span class="PUNC">:</span><span class="WHIT">    </span><span class="NAME">cfg.line.lineWidth</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>980</span> </span><span class="WHIT">          </span><span class="NAME">miterLimit</span><span class="PUNC">:</span><span class="WHIT">   </span><span class="NAME">cfg.line.miterLimit</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>981</span> </span><span class="WHIT">          </span><span class="NAME">strokeStyle</span><span class="PUNC">:</span><span class="WHIT">  </span><span class="NAME">cfg.strokeStyle</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>982</span> </span><span class="WHIT">          </span><span class="NAME">textAlign</span><span class="PUNC">:</span><span class="WHIT">    </span><span class="NAME">cfg.text.textAlign</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>983</span> </span><span class="WHIT">          </span><span class="NAME">textBaseline</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">cfg.text.textBaseline</span><span class="WHIT">
<span class='line'>984</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>985</span> 
<span class='line'>986</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cfg.text.bold</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>987</span> </span><span class="WHIT">      </span><span class="NAME">props.font</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'bold '</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">props.font</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>988</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>989</span> 
<span class='line'>990</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cfg.text.italic</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>991</span> </span><span class="WHIT">      </span><span class="NAME">props.font</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'italic '</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">props.font</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>992</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>993</span> 
<span class='line'>994</span> </span><span class="WHIT">    </span><span class="COMM">// Support Gecko 1.9.0</span><span class="WHIT">
<span class='line'>995</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">bufferContext.fillText</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="STRN">'mozTextStyle'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">bufferContext</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>996</span> </span><span class="WHIT">      </span><span class="NAME">props.mozTextStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">props.font</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>997</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>998</span> 
<span class='line'>999</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">prop</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">props</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1000</span> </span><span class="WHIT">      </span><span class="NAME">bufferContext</span><span class="PUNC">[</span><span class="NAME">prop</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">props</span><span class="PUNC">[</span><span class="NAME">prop</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1001</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1002</span> 
<span class='line'>1003</span> </span><span class="WHIT">    </span><span class="COMM">// shadows are only for the layer context.</span><span class="WHIT">
<span class='line'>1004</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cfg.shadow.enable</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">this.shadowSupported</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1005</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">layerContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.context</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1006</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.shadowColor</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadow.shadowColor</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1007</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.shadowBlur</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadow.shadowBlur</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1008</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.shadowOffsetX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadow.shadowOffsetX</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1009</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.shadowOffsetY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadow.shadowOffsetY</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1010</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1011</span> 
<span class='line'>1012</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1013</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1014</span> 
<span class='line'>1015</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1016</span>    * Initialization procedure which runs after the configuration, language and 
<span class='line'>1017</span>    * GUI files have loaded.
<span class='line'>1018</span>    *
<span class='line'>1019</span>    * &lt;p>This method dispatches the {@link pwlib.appEvent.appInit} event.
<span class='line'>1020</span>    *
<span class='line'>1021</span>    * @private
<span class='line'>1022</span>    *
<span class='line'>1023</span>    * @see pwlib.appEvent.appInit
<span class='line'>1024</span>    */</span><span class="WHIT">
<span class='line'>1025</span> </span><span class="WHIT">  </span><span class="NAME">this.initComplete</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1026</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">this.initCommands</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1027</span> </span><span class="WHIT">      </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.errorInitCommands</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1028</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1029</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1030</span> 
<span class='line'>1031</span> </span><span class="WHIT">    </span><span class="COMM">// The initial blank state of the image</span><span class="WHIT">
<span class='line'>1032</span> </span><span class="WHIT">    </span><span class="NAME">this.historyAdd</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1033</span> </span><span class="WHIT">    </span><span class="NAME">this.image.modified</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1034</span> 
<span class='line'>1035</span> </span><span class="WHIT">    </span><span class="COMM">// The global keyboard events handler implements everything needed for </span><span class="WHIT">
<span class='line'>1036</span> </span><span class="WHIT">    </span><span class="COMM">// switching between tools and for accessing any other functionality of the </span><span class="WHIT">
<span class='line'>1037</span> </span><span class="WHIT">    </span><span class="COMM">// Web application.</span><span class="WHIT">
<span class='line'>1038</span> </span><span class="WHIT">    </span><span class="NAME">kbListener_</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">pwlib.dom.KeyboardEventListener</span><span class="PUNC">(</span><span class="NAME">this.config.guiPlaceholder</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1039</span> </span><span class="WHIT">        </span><span class="PUNC">{</span><span class="NAME">keydown</span><span class="PUNC">:</span><span class="WHIT">  </span><span class="NAME">this.ev_keyboard</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1040</span> </span><span class="WHIT">         </span><span class="NAME">keypress</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">this.ev_keyboard</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1041</span> </span><span class="WHIT">         </span><span class="NAME">keyup</span><span class="PUNC">:</span><span class="WHIT">    </span><span class="NAME">this.ev_keyboard</span><span class="PUNC">}</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1042</span> 
<span class='line'>1043</span> </span><span class="WHIT">    </span><span class="NAME">this.updateCanvasScaling</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1044</span> </span><span class="WHIT">    </span><span class="NAME">this.win.addEventListener</span><span class="PUNC">(</span><span class="STRN">'resize'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.updateCanvasScaling</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1045</span> 
<span class='line'>1046</span> </span><span class="WHIT">    </span><span class="NAME">this.events.add</span><span class="PUNC">(</span><span class="STRN">'configChange'</span><span class="PUNC">,</span><span class="WHIT">    </span><span class="NAME">this.configChangeHandler</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1047</span> </span><span class="WHIT">    </span><span class="NAME">this.events.add</span><span class="PUNC">(</span><span class="STRN">'imageSaveResult'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.imageSaveResultHandler</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1048</span> 
<span class='line'>1049</span> </span><span class="WHIT">    </span><span class="COMM">// Add the init event handler.</span><span class="WHIT">
<span class='line'>1050</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">temp_.onInit</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'function'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1051</span> </span><span class="WHIT">      </span><span class="NAME">_self.events.add</span><span class="PUNC">(</span><span class="STRN">'appInit'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">temp_.onInit</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1052</span> </span><span class="WHIT">      </span><span class="KEYW">delete</span><span class="WHIT"> </span><span class="NAME">temp_.onInit</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1053</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1054</span> 
<span class='line'>1055</span> </span><span class="WHIT">    </span><span class="NAME">this.initialized</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">PaintWeb.INIT_DONE</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1056</span> 
<span class='line'>1057</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.appInit</span><span class="PUNC">(</span><span class="NAME">this.initialized</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1058</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1059</span> 
<span class='line'>1060</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1061</span>    * Load all the configured drawing tools.
<span class='line'>1062</span>    * @private
<span class='line'>1063</span>    */</span><span class="WHIT">
<span class='line'>1064</span> </span><span class="WHIT">  </span><span class="NAME">this.initTools</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1065</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">''</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1066</span> </span><span class="WHIT">        </span><span class="NAME">cfg</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1067</span> </span><span class="WHIT">        </span><span class="NAME">n</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.tools.length</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1068</span> </span><span class="WHIT">        </span><span class="NAME">base</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">PaintWeb.baseFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">cfg.toolsFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'/'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1069</span> 
<span class='line'>1070</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">n</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1071</span> </span><span class="WHIT">      </span><span class="NAME">this.initError</span><span class="PUNC">(</span><span class="NAME">lang.noToolConfigured</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1072</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1073</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1074</span> 
<span class='line'>1075</span> </span><span class="WHIT">    </span><span class="NAME">temp_.toolsLoadQueue</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">n</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1076</span> 
<span class='line'>1077</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">n</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1078</span> </span><span class="WHIT">      </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.tools</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1079</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">pwlib.tools</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1080</span> </span><span class="WHIT">        </span><span class="NAME">this.toolLoaded</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1081</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1082</span> </span><span class="WHIT">        </span><span class="NAME">this.scriptLoad</span><span class="PUNC">(</span><span class="NAME">base</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'.js'</span><span class="WHIT"> </span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.toolLoaded</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1083</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1084</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1085</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1086</span> 
<span class='line'>1087</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1088</span>    * The &lt;code>load&lt;/code> event handler for each tool script.
<span class='line'>1089</span>    * @private
<span class='line'>1090</span>    */</span><span class="WHIT">
<span class='line'>1091</span> </span><span class="WHIT">  </span><span class="NAME">this.toolLoaded</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1092</span> </span><span class="WHIT">    </span><span class="NAME">temp_.toolsLoadQueue</span><span class="PUNC">--</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1093</span> 
<span class='line'>1094</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">temp_.toolsLoadQueue</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1095</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">t</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config.tools</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1096</span> </span><span class="WHIT">          </span><span class="NAME">n</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">t.length</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1097</span> 
<span class='line'>1098</span> </span><span class="WHIT">      </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">n</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1099</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">_self.toolRegister</span><span class="PUNC">(</span><span class="NAME">t</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1100</span> </span><span class="WHIT">          </span><span class="NAME">_self.initError</span><span class="PUNC">(</span><span class="NAME">pwlib.strf</span><span class="PUNC">(</span><span class="NAME">lang.toolRegisterFailed</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="NAME">id</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">t</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">}</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1101</span> </span><span class="WHIT">          </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1102</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1103</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1104</span> 
<span class='line'>1105</span> </span><span class="WHIT">      </span><span class="NAME">_self.initExtensions</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1106</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1107</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1108</span> 
<span class='line'>1109</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1110</span>    * Load all the extensions.
<span class='line'>1111</span>    * @private
<span class='line'>1112</span>    */</span><span class="WHIT">
<span class='line'>1113</span> </span><span class="WHIT">  </span><span class="NAME">this.initExtensions</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1114</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">''</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1115</span> </span><span class="WHIT">        </span><span class="NAME">cfg</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1116</span> </span><span class="WHIT">        </span><span class="NAME">n</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.extensions.length</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1117</span> </span><span class="WHIT">        </span><span class="NAME">base</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">PaintWeb.baseFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">cfg.extensionsFolder</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'/'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1118</span> 
<span class='line'>1119</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">n</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1120</span> </span><span class="WHIT">      </span><span class="NAME">this.initComplete</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1121</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1122</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1123</span> 
<span class='line'>1124</span> </span><span class="WHIT">    </span><span class="NAME">temp_.extensionsLoadQueue</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">n</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1125</span> 
<span class='line'>1126</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">n</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1127</span> </span><span class="WHIT">      </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.extensions</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1128</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">pwlib.extensions</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1129</span> </span><span class="WHIT">        </span><span class="NAME">this.extensionLoaded</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1130</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1131</span> </span><span class="WHIT">        </span><span class="NAME">this.scriptLoad</span><span class="PUNC">(</span><span class="NAME">base</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'.js'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.extensionLoaded</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1132</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1133</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1134</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1135</span> 
<span class='line'>1136</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1137</span>    * The &lt;code>load&lt;/code> event handler for each extension script.
<span class='line'>1138</span>    * @private
<span class='line'>1139</span>    */</span><span class="WHIT">
<span class='line'>1140</span> </span><span class="WHIT">  </span><span class="NAME">this.extensionLoaded</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1141</span> </span><span class="WHIT">    </span><span class="NAME">temp_.extensionsLoadQueue</span><span class="PUNC">--</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1142</span> 
<span class='line'>1143</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">temp_.extensionsLoadQueue</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1144</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">e</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config.extensions</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1145</span> </span><span class="WHIT">          </span><span class="NAME">n</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">e.length</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1146</span> 
<span class='line'>1147</span> </span><span class="WHIT">      </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">n</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1148</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">_self.extensionRegister</span><span class="PUNC">(</span><span class="NAME">e</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1149</span> </span><span class="WHIT">          </span><span class="NAME">_self.initError</span><span class="PUNC">(</span><span class="NAME">pwlib.strf</span><span class="PUNC">(</span><span class="NAME">lang.extensionRegisterFailed</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="NAME">id</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NAME">e</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">}</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1150</span> </span><span class="WHIT">          </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1151</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1152</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1153</span> 
<span class='line'>1154</span> </span><span class="WHIT">      </span><span class="NAME">_self.initComplete</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1155</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1156</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1157</span> 
<span class='line'>1158</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1159</span>    * Update the canvas scaling. This method determines the DPI and/or zoom level 
<span class='line'>1160</span>    * used by the browser to render the application. Based on these values, the 
<span class='line'>1161</span>    * canvas elements are scaled down to cancel any upscaling performed by the 
<span class='line'>1162</span>    * browser.
<span class='line'>1163</span>    *
<span class='line'>1164</span>    * &lt;p>The {@link pwlib.appEvent.canvasSizeChange} application event is 
<span class='line'>1165</span>    * dispatched.
<span class='line'>1166</span>    */</span><span class="WHIT">
<span class='line'>1167</span> </span><span class="WHIT">  </span><span class="NAME">this.updateCanvasScaling</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1168</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">res</span><span class="WHIT">         </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.resolution</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1169</span> </span><span class="WHIT">        </span><span class="NAME">cs</span><span class="WHIT">          </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">win.getComputedStyle</span><span class="PUNC">(</span><span class="NAME">res.elem</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1170</span> </span><span class="WHIT">        </span><span class="NAME">image</span><span class="WHIT">       </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.image</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1171</span> </span><span class="WHIT">        </span><span class="NAME">bufferStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.buffer.canvas.style</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1172</span> </span><span class="WHIT">        </span><span class="NAME">layerStyle</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.layer.canvas.style</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1173</span> </span><span class="WHIT">        </span><span class="NAME">scaleNew</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1174</span> </span><span class="WHIT">        </span><span class="NAME">width</span><span class="WHIT">       </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">cs.width</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1175</span> </span><span class="WHIT">        </span><span class="NAME">height</span><span class="WHIT">      </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">cs.height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1176</span> 
<span class='line'>1177</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pwlib.browser.opera</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1178</span> </span><span class="WHIT">      </span><span class="COMM">// Opera zoom level detection.</span><span class="WHIT">
<span class='line'>1179</span> </span><span class="WHIT">      </span><span class="COMM">// The scaling factor is sufficiently accurate for zoom levels between </span><span class="WHIT">
<span class='line'>1180</span> </span><span class="WHIT">      </span><span class="COMM">// 100% and 200% (in steps of 10%).</span><span class="WHIT">
<span class='line'>1181</span> 
<span class='line'>1182</span> </span><span class="WHIT">      </span><span class="NAME">scaleNew</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">win.innerHeight</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">height</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1183</span> </span><span class="WHIT">      </span><span class="NAME">scaleNew</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathRound</span><span class="PUNC">(</span><span class="NAME">scaleNew</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NUMB">10</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NUMB">10</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1184</span> 
<span class='line'>1185</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">width</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">width</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">width</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">res.dpiOptimal</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1186</span> </span><span class="WHIT">      </span><span class="COMM">// Page DPI detection. This only works in Gecko 1.9.1.</span><span class="WHIT">
<span class='line'>1187</span> 
<span class='line'>1188</span> </span><span class="WHIT">      </span><span class="NAME">res.dpiLocal</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1189</span> 
<span class='line'>1190</span> </span><span class="WHIT">      </span><span class="COMM">// The scaling factor is the same as in Gecko.</span><span class="WHIT">
<span class='line'>1191</span> </span><span class="WHIT">      </span><span class="NAME">scaleNew</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathFloor</span><span class="PUNC">(</span><span class="NAME">res.dpiLocal</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">res.dpiOptimal</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1192</span> 
<span class='line'>1193</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pwlib.browser.olpcxo</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">pwlib.browser.gecko</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1194</span> </span><span class="WHIT">      </span><span class="COMM">// Support for the default Gecko included on the OLPC XO-1 system.</span><span class="WHIT">
<span class='line'>1195</span> </span><span class="WHIT">      </span><span class="COMM">//</span><span class="WHIT">
<span class='line'>1196</span> </span><span class="WHIT">      </span><span class="COMM">// See:</span><span class="WHIT">
<span class='line'>1197</span> </span><span class="WHIT">      </span><span class="COMM">// http://www.robodesign.ro/mihai/blog/paintweb-performance</span><span class="WHIT">
<span class='line'>1198</span> </span><span class="WHIT">      </span><span class="COMM">// http://mxr.mozilla.org/mozilla-central/source/gfx/src/thebes/nsThebesDeviceContext.cpp#725</span><span class="WHIT">
<span class='line'>1199</span> </span><span class="WHIT">      </span><span class="COMM">// dotsArePixels = false on the XO due to a hard-coded patch.</span><span class="WHIT">
<span class='line'>1200</span> </span><span class="WHIT">      </span><span class="COMM">// Thanks go to roc from Mozilla for his feedback on making this work.</span><span class="WHIT">
<span class='line'>1201</span> 
<span class='line'>1202</span> </span><span class="WHIT">      </span><span class="NAME">res.dpiLocal</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">134</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// hard-coded value, we cannot determine it</span><span class="WHIT">
<span class='line'>1203</span> 
<span class='line'>1204</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">appUnitsPerCSSPixel</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">60</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="COMM">// hard-coded internally in Gecko</span><span class="WHIT">
<span class='line'>1205</span> </span><span class="WHIT">          </span><span class="NAME">devPixelsPerCSSPixel</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">res.dpiLocal</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">res.dpiOptimal</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// 1.3958333333</span><span class="WHIT">
<span class='line'>1206</span> </span><span class="WHIT">          </span><span class="NAME">appUnitsPerDevPixel</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">appUnitsPerCSSPixel</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">devPixelsPerCSSPixel</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// 42.9850746278...</span><span class="WHIT">
<span class='line'>1207</span> 
<span class='line'>1208</span> </span><span class="WHIT">      </span><span class="NAME">scaleNew</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">appUnitsPerCSSPixel</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">MathFloor</span><span class="PUNC">(</span><span class="NAME">appUnitsPerDevPixel</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="COMM">// 1.4285714285...</span><span class="WHIT">
<span class='line'>1209</span> 
<span class='line'>1210</span> </span><span class="WHIT">      </span><span class="COMM">// New in Gecko 1.9.2.</span><span class="WHIT">
<span class='line'>1211</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'mozImageSmoothingEnabled'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">layerStyle</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1212</span> </span><span class="WHIT">        </span><span class="NAME">layerStyle.mozImageSmoothingEnabled</span><span class="WHIT"> 
<span class='line'>1213</span>           </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">bufferStyle.mozImageSmoothingEnabled</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1214</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1215</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1216</span> 
<span class='line'>1217</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">scaleNew</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">res.scale</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1218</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1219</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1220</span> 
<span class='line'>1221</span> </span><span class="WHIT">    </span><span class="NAME">res.scale</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">scaleNew</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1222</span> 
<span class='line'>1223</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">styleWidth</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="WHIT">  </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">res.scale</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">image.zoom</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1224</span> </span><span class="WHIT">        </span><span class="NAME">styleHeight</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">res.scale</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">image.zoom</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1225</span> 
<span class='line'>1226</span> </span><span class="WHIT">    </span><span class="NAME">image.canvasScale</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">styleWidth</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1227</span> 
<span class='line'>1228</span> </span><span class="WHIT">    </span><span class="COMM">// FIXME: MSIE 9 clears the Canvas element when you change the </span><span class="WHIT">
<span class='line'>1229</span> </span><span class="WHIT">    </span><span class="COMM">// elem.style.width/height... *argh*</span><span class="WHIT">
<span class='line'>1230</span> </span><span class="WHIT">    </span><span class="NAME">bufferStyle.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerStyle.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">styleWidth</span><span class="WHIT">  </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'px'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1231</span> </span><span class="WHIT">    </span><span class="NAME">bufferStyle.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerStyle.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">styleHeight</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'px'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1232</span> 
<span class='line'>1233</span> </span><span class="WHIT">    </span><span class="NAME">_self.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.canvasSizeChange</span><span class="PUNC">(</span><span class="NAME">styleWidth</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">styleHeight</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>1234</span>           </span><span class="NAME">image.canvasScale</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1235</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1236</span> 
<span class='line'>1237</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1238</span>    * The Canvas events handler.
<span class='line'>1239</span>    * 
<span class='line'>1240</span>    * &lt;p>This method determines the mouse position relative to the canvas 
<span class='line'>1241</span>    * element, after which it invokes the method of the currently active tool 
<span class='line'>1242</span>    * with the same name as the current event type. For example, for the 
<span class='line'>1243</span>    * &lt;code>mousedown&lt;/code> event the &lt;code>&lt;var>tool&lt;/var>.mousedown()&lt;/code> 
<span class='line'>1244</span>    * method is invoked.
<span class='line'>1245</span>    *
<span class='line'>1246</span>    * &lt;p>The mouse coordinates are stored in the {@link PaintWeb#mouse} object.  
<span class='line'>1247</span>    * These properties take into account the current zoom level and the image 
<span class='line'>1248</span>    * scroll.
<span class='line'>1249</span>    *
<span class='line'>1250</span>    * @private
<span class='line'>1251</span>    *
<span class='line'>1252</span>    * @param {Event} ev The DOM Event object.
<span class='line'>1253</span>    *
<span class='line'>1254</span>    * @returns {Boolean} True if the tool event handler executed, or false 
<span class='line'>1255</span>    * otherwise.
<span class='line'>1256</span>    */</span><span class="WHIT">
<span class='line'>1257</span> </span><span class="WHIT">  </span><span class="NAME">this.ev_canvas</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1258</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">_self.tool</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1259</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1260</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1261</span> 
<span class='line'>1262</span> </span><span class="WHIT">    </span><span class="KEYW">switch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.type</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1263</span> </span><span class="WHIT">      </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'mousedown'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1264</span> </span><span class="WHIT">        </span><span class="COMM">/*
<span class='line'>1265</span>          * If the mouse is down already, skip the event.
<span class='line'>1266</span>          * This is needed to allow the user to go out of the drawing canvas, 
<span class='line'>1267</span>          * release the mouse button, then come back and click to end the drawing 
<span class='line'>1268</span>          * operation.
<span class='line'>1269</span>          * Additionally, this is needed to allow extensions like MouseKeys to 
<span class='line'>1270</span>          * perform their actions during a drawing operation, even when a real 
<span class='line'>1271</span>          * mouse is used. For example, allow the user to start drawing with the 
<span class='line'>1272</span>          * keyboard (press 0) then use the real mouse to move and click to end 
<span class='line'>1273</span>          * the drawing operation.
<span class='line'>1274</span>          */</span><span class="WHIT">
<span class='line'>1275</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">_self.mouse.buttonDown</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1276</span> </span><span class="WHIT">          </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1277</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1278</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.buttonDown</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1279</span> </span><span class="WHIT">        </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1280</span> 
<span class='line'>1281</span> </span><span class="WHIT">      </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'mouseup'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1282</span> </span><span class="WHIT">        </span><span class="COMM">// Skip the event if the mouse button was not down.</span><span class="WHIT">
<span class='line'>1283</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">_self.mouse.buttonDown</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1284</span> </span><span class="WHIT">          </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1285</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1286</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.buttonDown</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1287</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1288</span> 
<span class='line'>1289</span> </span><span class="WHIT">    </span><span class="COMM">/*
<span class='line'>1290</span>      * Update the event, to include the mouse position, relative to the canvas 
<span class='line'>1291</span>      * element.
<span class='line'>1292</span>      */</span><span class="WHIT">
<span class='line'>1293</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'layerX'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1294</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">_self.image.canvasScale</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1295</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.x</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.layerX</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1296</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.y</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.layerY</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1297</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1298</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.x</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathRound</span><span class="PUNC">(</span><span class="NAME">ev.layerX</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">_self.image.canvasScale</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1299</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.y</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathRound</span><span class="PUNC">(</span><span class="NAME">ev.layerY</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">_self.image.canvasScale</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1300</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1301</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'offsetX'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1302</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">_self.image.canvasScale</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1303</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.x</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.offsetX</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1304</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.y</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.offsetY</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1305</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1306</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.x</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathRound</span><span class="PUNC">(</span><span class="NAME">ev.offsetX</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">_self.image.canvasScale</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1307</span> </span><span class="WHIT">        </span><span class="NAME">_self.mouse.y</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathRound</span><span class="PUNC">(</span><span class="NAME">ev.offsetY</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">_self.image.canvasScale</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1308</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1309</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1310</span> 
<span class='line'>1311</span> </span><span class="WHIT">    </span><span class="COMM">// The event handler of the current tool.</span><span class="WHIT">
<span class='line'>1312</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.type</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">_self.tool</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">_self.tool</span><span class="PUNC">[</span><span class="NAME">ev.type</span><span class="PUNC">]</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1313</span> </span><span class="WHIT">      </span><span class="NAME">ev.preventDefault</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1314</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1315</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1316</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1317</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1318</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1319</span> 
<span class='line'>1320</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1321</span>    * The global keyboard events handler. This makes all the keyboard shortcuts 
<span class='line'>1322</span>    * work in the web application.
<span class='line'>1323</span>    *
<span class='line'>1324</span>    * &lt;p>This method determines the key the user pressed, based on the 
<span class='line'>1325</span>    * &lt;var>ev&lt;/var> DOM Event object, taking into consideration any browser 
<span class='line'>1326</span>    * differences. Two new properties are added to the &lt;var>ev&lt;/var> object:
<span class='line'>1327</span>    *
<span class='line'>1328</span>    * &lt;ul>
<span class='line'>1329</span>    *   &lt;li>&lt;var>ev.kid_&lt;/var> is a string holding the key and the modifiers list 
<span class='line'>1330</span>    *   (&lt;kbd>Control&lt;/kbd>, &lt;kbd>Alt&lt;/kbd> and/or &lt;kbd>Shift&lt;/kbd>). For 
<span class='line'>1331</span>    *   example, if the user would press the key &lt;kbd>A&lt;/kbd> while holding down 
<span class='line'>1332</span>    *   &lt;kbd>Control&lt;/kbd>, then &lt;var>ev.kid_&lt;/var> would be "Control A". If the 
<span class='line'>1333</span>    *   user would press "9" while holding down &lt;kbd>Shift&lt;/kbd>, then 
<span class='line'>1334</span>    *   &lt;var>ev.kid_&lt;/var> would be "Shift 9".
<span class='line'>1335</span>    *
<span class='line'>1336</span>    *   &lt;li>&lt;var>ev.kobj_&lt;/var> holds a reference to the keyboard shortcut 
<span class='line'>1337</span>    *   definition object from the configuration. This is useful for reuse, for 
<span class='line'>1338</span>    *   passing parameters from the keyboard shortcut configuration object to the 
<span class='line'>1339</span>    *   event handler.
<span class='line'>1340</span>    * &lt;/ul>
<span class='line'>1341</span>    *
<span class='line'>1342</span>    * &lt;p>In {@link PaintWeb.config.keys} one can setup the keyboard shortcuts.  
<span class='line'>1343</span>    * If the keyboard combination is found in that list, then the associated tool 
<span class='line'>1344</span>    * is activated.
<span class='line'>1345</span>    *
<span class='line'>1346</span>    * &lt;p>Note: this method includes some work-around for making the image zoom 
<span class='line'>1347</span>    * keys work well both in Opera and Firefox.
<span class='line'>1348</span>    *
<span class='line'>1349</span>    * @private
<span class='line'>1350</span>    *
<span class='line'>1351</span>    * @param {Event} ev The DOM Event object.
<span class='line'>1352</span>    *
<span class='line'>1353</span>    * @see PaintWeb.config.keys The keyboard shortcuts configuration.
<span class='line'>1354</span>    * @see pwlib.dom.KeyboardEventListener The class dealing with the 
<span class='line'>1355</span>    * cross-browser differences in the DOM keyboard events.
<span class='line'>1356</span>    */</span><span class="WHIT">
<span class='line'>1357</span> </span><span class="WHIT">  </span><span class="NAME">this.ev_keyboard</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1358</span> </span><span class="WHIT">    </span><span class="COMM">// Do not continue if the key was not recognized by the lib.</span><span class="WHIT">
<span class='line'>1359</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">ev.key_</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1360</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1361</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1362</span> 
<span class='line'>1363</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.target</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">ev.target.nodeName</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1364</span> </span><span class="WHIT">      </span><span class="KEYW">switch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.target.nodeName.toLowerCase</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1365</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'input'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1366</span> </span><span class="WHIT">          </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.type</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'keypress'</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.key_</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'Up'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">ev.key_</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'Down'</span><span class="PUNC">)</span><span class="WHIT"> 
<span class='line'>1367</span>               </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">ev.target.getAttribute</span><span class="PUNC">(</span><span class="STRN">'type'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'number'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1368</span> </span><span class="WHIT">            </span><span class="NAME">_self.ev_numberInput</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1369</span> </span><span class="WHIT">          </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1370</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'select'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1371</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'textarea'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1372</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'button'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1373</span> </span><span class="WHIT">          </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1374</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1375</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1376</span> 
<span class='line'>1377</span> </span><span class="WHIT">    </span><span class="COMM">// Rather ugly, but the only way, at the moment, to detect these keys in </span><span class="WHIT">
<span class='line'>1378</span> </span><span class="WHIT">    </span><span class="COMM">// Opera and Firefox.</span><span class="WHIT">
<span class='line'>1379</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.type</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'keypress'</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">ev.char_</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1380</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">isZoomKey</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1381</span> </span><span class="WHIT">          </span><span class="NAME">imageZoomKeys</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config.imageZoomKeys</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1382</span> 
<span class='line'>1383</span> </span><span class="WHIT">      </span><span class="COMM">// Check if this is a zoom key and execute the commands as needed.</span><span class="WHIT">
<span class='line'>1384</span> </span><span class="WHIT">      </span><span class="KEYW">switch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.char_</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1385</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="NAME">imageZoomKeys</span><span class="PUNC">[</span><span class="STRN">'in'</span><span class="PUNC">]</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1386</span> </span><span class="WHIT">          </span><span class="NAME">_self.imageZoomIn</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1387</span> </span><span class="WHIT">          </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1388</span> 
<span class='line'>1389</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="NAME">imageZoomKeys</span><span class="PUNC">[</span><span class="STRN">'out'</span><span class="PUNC">]</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1390</span> </span><span class="WHIT">          </span><span class="NAME">_self.imageZoomOut</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1391</span> </span><span class="WHIT">          </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1392</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="NAME">imageZoomKeys</span><span class="PUNC">[</span><span class="STRN">'reset'</span><span class="PUNC">]</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1393</span> </span><span class="WHIT">          </span><span class="NAME">_self.imageZoomReset</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1394</span> </span><span class="WHIT">          </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1395</span> </span><span class="WHIT">        </span><span class="KEYW">default</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>1396</span> </span><span class="WHIT">          </span><span class="NAME">isZoomKey</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1397</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1398</span> 
<span class='line'>1399</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">isZoomKey</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1400</span> </span><span class="WHIT">        </span><span class="NAME">ev.preventDefault</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1401</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1402</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1403</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1404</span> 
<span class='line'>1405</span> </span><span class="WHIT">    </span><span class="COMM">// Determine the key ID.</span><span class="WHIT">
<span class='line'>1406</span> </span><span class="WHIT">    </span><span class="NAME">ev.kid_</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">''</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1407</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">kmods</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="NAME">altKey</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'Alt'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ctrlKey</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'Control'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">shiftKey</span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'Shift'</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1408</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">i</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">kmods</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1409</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">ev.key_</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">kmods</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1410</span> </span><span class="WHIT">        </span><span class="NAME">ev.kid_</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">kmods</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">' '</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1411</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1412</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1413</span> </span><span class="WHIT">    </span><span class="NAME">ev.kid_</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.key_</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1414</span> 
<span class='line'>1415</span> </span><span class="WHIT">    </span><span class="COMM">// Send the keyboard event to the event handler of the active tool. If it </span><span class="WHIT">
<span class='line'>1416</span> </span><span class="WHIT">    </span><span class="COMM">// returns true, we consider it recognized the keyboard shortcut.</span><span class="WHIT">
<span class='line'>1417</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">_self.tool</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">ev.type</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">_self.tool</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">_self.tool</span><span class="PUNC">[</span><span class="NAME">ev.type</span><span class="PUNC">]</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1418</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1419</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1420</span> 
<span class='line'>1421</span> </span><span class="WHIT">    </span><span class="COMM">// If there's no event handler within the active tool, or if the event </span><span class="WHIT">
<span class='line'>1422</span> </span><span class="WHIT">    </span><span class="COMM">// handler does otherwise return false, then we continue with the global </span><span class="WHIT">
<span class='line'>1423</span> </span><span class="WHIT">    </span><span class="COMM">// keyboard shortcuts.</span><span class="WHIT">
<span class='line'>1424</span> 
<span class='line'>1425</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">gkey</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config.keys</span><span class="PUNC">[</span><span class="NAME">ev.kid_</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1426</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">gkey</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1427</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1428</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1429</span> 
<span class='line'>1430</span> </span><span class="WHIT">    </span><span class="NAME">ev.kobj_</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">gkey</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1431</span> 
<span class='line'>1432</span> </span><span class="WHIT">    </span><span class="COMM">// Check if the keyboard shortcut has some extension associated.</span><span class="WHIT">
<span class='line'>1433</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'extension'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">gkey</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1434</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">extension</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.extensions</span><span class="PUNC">[</span><span class="NAME">gkey.extension</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1435</span> </span><span class="WHIT">          </span><span class="NAME">method</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">gkey.method</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">ev.type</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1436</span> 
<span class='line'>1437</span> </span><span class="WHIT">      </span><span class="COMM">// Call the extension method.</span><span class="WHIT">
<span class='line'>1438</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">method</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">extension</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1439</span> </span><span class="WHIT">        </span><span class="NAME">extension</span><span class="PUNC">[</span><span class="NAME">method</span><span class="PUNC">]</span><span class="PUNC">.</span><span class="NAME">call</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1440</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1441</span> 
<span class='line'>1442</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'command'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">gkey</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">gkey.command</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">_self.commands</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1443</span> </span><span class="WHIT">      </span><span class="COMM">// Invoke the command associated with the key.</span><span class="WHIT">
<span class='line'>1444</span> </span><span class="WHIT">      </span><span class="NAME">_self.commands</span><span class="PUNC">[</span><span class="NAME">gkey.command</span><span class="PUNC">]</span><span class="PUNC">.</span><span class="NAME">call</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1445</span> 
<span class='line'>1446</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.type</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'keydown'</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="STRN">'toolActivate'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">gkey</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1447</span> 
<span class='line'>1448</span> </span><span class="WHIT">      </span><span class="COMM">// Active the tool associated to the key.</span><span class="WHIT">
<span class='line'>1449</span> </span><span class="WHIT">      </span><span class="NAME">_self.toolActivate</span><span class="PUNC">(</span><span class="NAME">gkey.toolActivate</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1450</span> 
<span class='line'>1451</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1452</span> 
<span class='line'>1453</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.type</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'keypress'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1454</span> </span><span class="WHIT">      </span><span class="NAME">ev.preventDefault</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1455</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1456</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1457</span> 
<span class='line'>1458</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1459</span>    * This is the &lt;code>keypress&lt;/code> event handler for inputs of type=number.  
<span class='line'>1460</span>    * This function only handles cases when the key is &lt;kbd>Up&lt;/kbd> or 
<span class='line'>1461</span>    * &lt;kbd>Down&lt;/kbd>. For the &lt;kbd>Up&lt;/kbd> key the input value is increased, 
<span class='line'>1462</span>    * and for the &lt;kbd>Down&lt;/kbd> the value is decreased.
<span class='line'>1463</span>    *
<span class='line'>1464</span>    * @private
<span class='line'>1465</span>    * @param {Event} ev The DOM Event object.
<span class='line'>1466</span>    * @see PaintWeb#ev_keyboard
<span class='line'>1467</span>    */</span><span class="WHIT">
<span class='line'>1468</span> </span><span class="WHIT">  </span><span class="NAME">this.ev_numberInput</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1469</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">target</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.target</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1470</span> 
<span class='line'>1471</span> </span><span class="WHIT">    </span><span class="COMM">// Process the value.</span><span class="WHIT">
<span class='line'>1472</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">val</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1473</span> </span><span class="WHIT">        </span><span class="NAME">max</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseFloat</span><span class="PUNC">(</span><span class="NAME">target.getAttribute</span><span class="PUNC">(</span><span class="STRN">'max'</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1474</span> </span><span class="WHIT">        </span><span class="NAME">min</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseFloat</span><span class="PUNC">(</span><span class="NAME">target.getAttribute</span><span class="PUNC">(</span><span class="STRN">'min'</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1475</span> </span><span class="WHIT">        </span><span class="NAME">step</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseFloat</span><span class="PUNC">(</span><span class="NAME">target.getAttribute</span><span class="PUNC">(</span><span class="STRN">'step'</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1476</span> 
<span class='line'>1477</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">target.value</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">''</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">target.value</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1478</span> </span><span class="WHIT">      </span><span class="NAME">val</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">min</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">?</span><span class="WHIT"> </span><span class="NAME">min</span><span class="WHIT"> </span><span class="PUNC">:</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1479</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1480</span> </span><span class="WHIT">      </span><span class="NAME">val</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseFloat</span><span class="PUNC">(</span><span class="NAME">target.value.replace</span><span class="PUNC">(</span><span class="REGX">/[,.]+/g</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'.'</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="WHIT">
<span class='line'>1481</span> </span><span class="WHIT">                                    </span><span class="NAME">replace</span><span class="PUNC">(</span><span class="REGX">/[^0-9.\-]/g</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">''</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1482</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1483</span> 
<span class='line'>1484</span> </span><span class="WHIT">    </span><span class="COMM">// If target is not a number, then set the old value, or the minimum value. If all fails, set 0.</span><span class="WHIT">
<span class='line'>1485</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">val</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1486</span> </span><span class="WHIT">      </span><span class="NAME">val</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">min</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1487</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1488</span> 
<span class='line'>1489</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">step</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1490</span> </span><span class="WHIT">      </span><span class="NAME">step</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1491</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1492</span> 
<span class='line'>1493</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.shiftKey</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1494</span> </span><span class="WHIT">      </span><span class="NAME">step</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1495</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1496</span> 
<span class='line'>1497</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.key_</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'Down'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1498</span> </span><span class="WHIT">      </span><span class="NAME">step</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1499</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1500</span> 
<span class='line'>1501</span> </span><span class="WHIT">    </span><span class="NAME">val</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">step</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1502</span> 
<span class='line'>1503</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">max</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">val</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">max</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1504</span> </span><span class="WHIT">      </span><span class="NAME">val</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">max</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1505</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">min</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">val</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">min</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1506</span> </span><span class="WHIT">      </span><span class="NAME">val</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">min</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1507</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1508</span> 
<span class='line'>1509</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">val</span><span class="WHIT"> </span><span class="PUNC">==</span><span class="WHIT"> </span><span class="NAME">target.value</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1510</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1511</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1512</span> 
<span class='line'>1513</span> </span><span class="WHIT">    </span><span class="NAME">target.value</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">val</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1514</span> 
<span class='line'>1515</span> </span><span class="WHIT">    </span><span class="COMM">// Dispatch the 'change' events to make sure that any associated event </span><span class="WHIT">
<span class='line'>1516</span> </span><span class="WHIT">    </span><span class="COMM">// handlers pick up the changes.</span><span class="WHIT">
<span class='line'>1517</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">doc.createEvent</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">target.dispatchEvent</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1518</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ev_change</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.createEvent</span><span class="PUNC">(</span><span class="STRN">'HTMLEvents'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1519</span> </span><span class="WHIT">      </span><span class="NAME">ev_change.initEvent</span><span class="PUNC">(</span><span class="STRN">'change'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1520</span> </span><span class="WHIT">      </span><span class="NAME">target.dispatchEvent</span><span class="PUNC">(</span><span class="NAME">ev_change</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1521</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1522</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1523</span> 
<span class='line'>1524</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1525</span>    * Zoom into the image.
<span class='line'>1526</span>    *
<span class='line'>1527</span>    * @param {mixed} ev An event object which might have the &lt;var>shiftKey&lt;/var> 
<span class='line'>1528</span>    * property. If the property evaluates to true, then the zoom level will 
<span class='line'>1529</span>    * increase twice more than normal.
<span class='line'>1530</span>    *
<span class='line'>1531</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>1532</span>    *
<span class='line'>1533</span>    * @see PaintWeb#imageZoomTo The method used for changing the zoom level.
<span class='line'>1534</span>    * @see PaintWeb.config.zoomStep The value used for increasing the zoom level.
<span class='line'>1535</span>    */</span><span class="WHIT">
<span class='line'>1536</span> </span><span class="WHIT">  </span><span class="NAME">this.imageZoomIn</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1537</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">ev.shiftKey</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1538</span> </span><span class="WHIT">      </span><span class="NAME">_self.config.imageZoomStep</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1539</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1540</span> 
<span class='line'>1541</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">res</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.imageZoomTo</span><span class="PUNC">(</span><span class="STRN">'+'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1542</span> 
<span class='line'>1543</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">ev.shiftKey</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1544</span> </span><span class="WHIT">      </span><span class="NAME">_self.config.imageZoomStep</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1545</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1546</span> 
<span class='line'>1547</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">res</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1548</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1549</span> 
<span class='line'>1550</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1551</span>    * Zoom out of the image.
<span class='line'>1552</span>    *
<span class='line'>1553</span>    * @param {mixed} ev An event object which might have the &lt;var>shiftKey&lt;/var> 
<span class='line'>1554</span>    * property. If the property evaluates to true, then the zoom level will 
<span class='line'>1555</span>    * decrease twice more than normal.
<span class='line'>1556</span>    *
<span class='line'>1557</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>1558</span>    *
<span class='line'>1559</span>    * @see PaintWeb#imageZoomTo The method used for changing the zoom level.
<span class='line'>1560</span>    * @see PaintWeb.config.zoomStep The value used for decreasing the zoom level.
<span class='line'>1561</span>    */</span><span class="WHIT">
<span class='line'>1562</span> </span><span class="WHIT">  </span><span class="NAME">this.imageZoomOut</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1563</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">ev.shiftKey</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1564</span> </span><span class="WHIT">      </span><span class="NAME">_self.config.imageZoomStep</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1565</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1566</span> 
<span class='line'>1567</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">res</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.imageZoomTo</span><span class="PUNC">(</span><span class="STRN">'-'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1568</span> 
<span class='line'>1569</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">ev.shiftKey</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1570</span> </span><span class="WHIT">      </span><span class="NAME">_self.config.imageZoomStep</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1571</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1572</span> 
<span class='line'>1573</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">res</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1574</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1575</span> 
<span class='line'>1576</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1577</span>    * Reset the image zoom level to normal.
<span class='line'>1578</span>    *
<span class='line'>1579</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>1580</span>    *
<span class='line'>1581</span>    * @see PaintWeb#imageZoomTo The method used for changing the zoom level.
<span class='line'>1582</span>    */</span><span class="WHIT">
<span class='line'>1583</span> </span><span class="WHIT">  </span><span class="NAME">this.imageZoomReset</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1584</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">_self.imageZoomTo</span><span class="PUNC">(</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1585</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1586</span> 
<span class='line'>1587</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1588</span>    * Change the image zoom level.
<span class='line'>1589</span>    *
<span class='line'>1590</span>    * &lt;p>This method dispatches the {@link pwlib.appEvent.imageZoom} application 
<span class='line'>1591</span>    * event before zooming the image. Once the image zoom is applied, the {@link 
<span class='line'>1592</span>    * pwlib.appEvent.canvasSizeChange} event is dispatched.
<span class='line'>1593</span>    *
<span class='line'>1594</span>    * @param {Number|String} level The level you want to zoom the image to.
<span class='line'>1595</span>    * 
<span class='line'>1596</span>    * &lt;p>If the value is a number, it must be a floating point positive number, 
<span class='line'>1597</span>    * where 0.5 means 50%, 1 means 100% (normal) zoom, 4 means 400% and so on.
<span class='line'>1598</span>    *
<span class='line'>1599</span>    * &lt;p>If the value is a string it must be "+" or "-". This means that the zoom 
<span class='line'>1600</span>    * level will increase/decrease using the configured {@link 
<span class='line'>1601</span>    * PaintWeb.config.zoomStep}.
<span class='line'>1602</span>    *
<span class='line'>1603</span>    * @returns {Boolean} True if the image zoom level changed successfully, or 
<span class='line'>1604</span>    * false if not.
<span class='line'>1605</span>    */</span><span class="WHIT">
<span class='line'>1606</span> </span><span class="WHIT">  </span><span class="NAME">this.imageZoomTo</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">level</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1607</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">image</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.image</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1608</span> </span><span class="WHIT">        </span><span class="NAME">config</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1609</span> </span><span class="WHIT">        </span><span class="NAME">res</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.resolution</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1610</span> 
<span class='line'>1611</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">level</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1612</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1613</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'+'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1614</span> </span><span class="WHIT">      </span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">image.zoom</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">config.imageZoomStep</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1615</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'-'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1616</span> </span><span class="WHIT">      </span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">image.zoom</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">config.imageZoomStep</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1617</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'number'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1618</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1619</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1620</span> 
<span class='line'>1621</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">config.imageZoomMax</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1622</span> </span><span class="WHIT">      </span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">config.imageZoomMax</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1623</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">config.imageZoomMin</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1624</span> </span><span class="WHIT">      </span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">config.imageZoomMin</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1625</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1626</span> 
<span class='line'>1627</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">level</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">image.zoom</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1628</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1629</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1630</span> 
<span class='line'>1631</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cancel</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.imageZoom</span><span class="PUNC">(</span><span class="NAME">level</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1632</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cancel</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1633</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1634</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1635</span> 
<span class='line'>1636</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">styleWidth</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="WHIT">  </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">res.scale</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">level</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1637</span> </span><span class="WHIT">        </span><span class="NAME">styleHeight</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">res.scale</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">level</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1638</span> </span><span class="WHIT">        </span><span class="NAME">bufferStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.buffer.canvas.style</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1639</span> </span><span class="WHIT">        </span><span class="NAME">layerStyle</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.canvas.style</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1640</span> 
<span class='line'>1641</span> </span><span class="WHIT">    </span><span class="NAME">image.canvasScale</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">styleWidth</span><span class="WHIT"> </span><span class="PUNC">/</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1642</span> 
<span class='line'>1643</span> </span><span class="WHIT">    </span><span class="COMM">// FIXME: MSIE 9 clears the Canvas element when you change the </span><span class="WHIT">
<span class='line'>1644</span> </span><span class="WHIT">    </span><span class="COMM">// elem.style.width/height... *argh*</span><span class="WHIT">
<span class='line'>1645</span> </span><span class="WHIT">    </span><span class="NAME">bufferStyle.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerStyle.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">styleWidth</span><span class="WHIT">  </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'px'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1646</span> </span><span class="WHIT">    </span><span class="NAME">bufferStyle.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerStyle.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">styleHeight</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'px'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1647</span> 
<span class='line'>1648</span> </span><span class="WHIT">    </span><span class="NAME">image.zoom</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">level</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1649</span> 
<span class='line'>1650</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.canvasSizeChange</span><span class="PUNC">(</span><span class="NAME">styleWidth</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">styleHeight</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>1651</span>           </span><span class="NAME">image.canvasScale</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1652</span> 
<span class='line'>1653</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1654</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1655</span> 
<span class='line'>1656</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1657</span>    * Crop the image.
<span class='line'>1658</span>    *
<span class='line'>1659</span>    * &lt;p>The content of the image is retained only if the browser implements the 
<span class='line'>1660</span>    * &lt;code>getImageData&lt;/code> and &lt;code>putImageData&lt;/code> methods.
<span class='line'>1661</span>    *
<span class='line'>1662</span>    * &lt;p>This method dispatches three application events: {@link 
<span class='line'>1663</span>    * pwlib.appEvent.imageSizeChange}, {@link pwlib.appEvent.canvasSizeChange} 
<span class='line'>1664</span>    * and {@link pwlib.appEvent.imageCrop}. The &lt;code>imageCrop&lt;/code> event is 
<span class='line'>1665</span>    * dispatched before the image is cropped. The &lt;code>imageSizeChange&lt;/code> 
<span class='line'>1666</span>    * and &lt;code>canvasSizeChange&lt;/code> events are dispatched after the image is 
<span class='line'>1667</span>    * cropped.
<span class='line'>1668</span>    *
<span class='line'>1669</span>    * @param {Number} cropX Image cropping start position on the x-axis.
<span class='line'>1670</span>    * @param {Number} cropY Image cropping start position on the y-axis.
<span class='line'>1671</span>    * @param {Number} cropWidth Image crop width.
<span class='line'>1672</span>    * @param {Number} cropHeight Image crop height.
<span class='line'>1673</span>    *
<span class='line'>1674</span>    * @returns {Boolean} True if the image was cropped successfully, or false if 
<span class='line'>1675</span>    * not.
<span class='line'>1676</span>    */</span><span class="WHIT">
<span class='line'>1677</span> </span><span class="WHIT">  </span><span class="NAME">this.imageCrop</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cropX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cropY</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cropWidth</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cropHeight</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1678</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">bufferCanvas</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.buffer.canvas</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1679</span> </span><span class="WHIT">        </span><span class="NAME">bufferContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.buffer.context</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1680</span> </span><span class="WHIT">        </span><span class="NAME">image</span><span class="WHIT">         </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.image</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1681</span> </span><span class="WHIT">        </span><span class="NAME">layerCanvas</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.canvas</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1682</span> </span><span class="WHIT">        </span><span class="NAME">layerContext</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.context</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1683</span> 
<span class='line'>1684</span> </span><span class="WHIT">    </span><span class="NAME">cropX</span><span class="WHIT">      </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">cropX</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1685</span> </span><span class="WHIT">    </span><span class="NAME">cropY</span><span class="WHIT">      </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">cropY</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1686</span> </span><span class="WHIT">    </span><span class="NAME">cropWidth</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">cropWidth</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1687</span> </span><span class="WHIT">    </span><span class="NAME">cropHeight</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">cropHeight</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1688</span> 
<span class='line'>1689</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">cropWidth</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">cropHeight</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">cropX</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">cropY</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> 
<span class='line'>1690</span>         </span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">cropWidth</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">isNaN</span><span class="PUNC">(</span><span class="NAME">cropHeight</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">cropX</span><span class="WHIT"> </span><span class="PUNC">>=</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">cropY</span><span class="WHIT"> 
<span class='line'>1691</span>         </span><span class="PUNC">>=</span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1692</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1693</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1694</span> 
<span class='line'>1695</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cancel</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.imageCrop</span><span class="PUNC">(</span><span class="NAME">cropX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cropY</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>1696</span>           </span><span class="NAME">cropWidth</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cropHeight</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1697</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cancel</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1698</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1699</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1700</span> 
<span class='line'>1701</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cropWidth</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">this.config.imageWidthMax</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1702</span> </span><span class="WHIT">      </span><span class="NAME">cropWidth</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config.imageWidthMax</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1703</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1704</span> 
<span class='line'>1705</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cropHeight</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">this.config.imageHeightMax</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1706</span> </span><span class="WHIT">      </span><span class="NAME">cropHeight</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config.imageHeightMax</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1707</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1708</span> 
<span class='line'>1709</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cropX</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">cropY</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">cropWidth</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="WHIT"> 
<span class='line'>1710</span>         </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">cropHeight</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1711</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1712</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1713</span> 
<span class='line'>1714</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">layerData</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1715</span> </span><span class="WHIT">        </span><span class="NAME">bufferData</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1716</span> </span><span class="WHIT">        </span><span class="NAME">layerState</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.stateSave</span><span class="PUNC">(</span><span class="NAME">layerContext</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1717</span> </span><span class="WHIT">        </span><span class="NAME">bufferState</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.stateSave</span><span class="PUNC">(</span><span class="NAME">bufferContext</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1718</span> </span><span class="WHIT">        </span><span class="NAME">scaledWidth</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropWidth</span><span class="WHIT">  </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">image.canvasScale</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1719</span> </span><span class="WHIT">        </span><span class="NAME">scaledHeight</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropHeight</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">image.canvasScale</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1720</span> </span><span class="WHIT">        </span><span class="NAME">dataWidth</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathMin</span><span class="PUNC">(</span><span class="NAME">image.width</span><span class="PUNC">,</span><span class="WHIT">  </span><span class="NAME">cropWidth</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1721</span> </span><span class="WHIT">        </span><span class="NAME">dataHeight</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathMin</span><span class="PUNC">(</span><span class="NAME">image.height</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cropHeight</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1722</span> </span><span class="WHIT">        </span><span class="NAME">sumX</span><span class="WHIT">         </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropX</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">dataWidth</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1723</span> </span><span class="WHIT">        </span><span class="NAME">sumY</span><span class="WHIT">         </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropY</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">dataHeight</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1724</span> 
<span class='line'>1725</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">sumX</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1726</span> </span><span class="WHIT">      </span><span class="NAME">dataWidth</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">sumX</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1727</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1728</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">sumY</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1729</span> </span><span class="WHIT">      </span><span class="NAME">dataHeight</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">sumY</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1730</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1731</span> 
<span class='line'>1732</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">layerContext.getImageData</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1733</span> </span><span class="WHIT">      </span><span class="COMM">// TODO: handle "out of memory" errors.</span><span class="WHIT">
<span class='line'>1734</span> </span><span class="WHIT">      </span><span class="KEYW">try</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1735</span> </span><span class="WHIT">        </span><span class="NAME">layerData</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerContext.getImageData</span><span class="PUNC">(</span><span class="NAME">cropX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cropY</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">dataWidth</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>1736</span>             </span><span class="NAME">dataHeight</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1737</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">catch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">err</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1738</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1739</span> 
<span class='line'>1740</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">bufferContext.getImageData</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1741</span> </span><span class="WHIT">      </span><span class="KEYW">try</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1742</span> </span><span class="WHIT">        </span><span class="NAME">bufferData</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">bufferContext.getImageData</span><span class="PUNC">(</span><span class="NAME">cropX</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cropY</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">dataWidth</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>1743</span>             </span><span class="NAME">dataHeight</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1744</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">catch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">err</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT"> </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1745</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1746</span> 
<span class='line'>1747</span> </span><span class="WHIT">    </span><span class="NAME">bufferCanvas.style.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.style.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">scaledWidth</span><span class="WHIT">  </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'px'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1748</span> </span><span class="WHIT">    </span><span class="NAME">bufferCanvas.style.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.style.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">scaledHeight</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'px'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1749</span> 
<span class='line'>1750</span> </span><span class="WHIT">    </span><span class="NAME">layerCanvas.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropWidth</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1751</span> </span><span class="WHIT">    </span><span class="NAME">layerCanvas.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropHeight</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1752</span> 
<span class='line'>1753</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">layerData</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">layerContext.putImageData</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1754</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.putImageData</span><span class="PUNC">(</span><span class="NAME">layerData</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1755</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1756</span> 
<span class='line'>1757</span> </span><span class="WHIT">    </span><span class="NAME">this.stateRestore</span><span class="PUNC">(</span><span class="NAME">layerContext</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">layerState</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1758</span> </span><span class="WHIT">    </span><span class="NAME">state</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.stateSave</span><span class="PUNC">(</span><span class="NAME">bufferContext</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1759</span> 
<span class='line'>1760</span> </span><span class="WHIT">    </span><span class="NAME">bufferCanvas.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropWidth</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1761</span> </span><span class="WHIT">    </span><span class="NAME">bufferCanvas.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropHeight</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1762</span> 
<span class='line'>1763</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">bufferData</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">bufferContext.putImageData</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1764</span> </span><span class="WHIT">      </span><span class="NAME">bufferContext.putImageData</span><span class="PUNC">(</span><span class="NAME">bufferData</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1765</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1766</span> 
<span class='line'>1767</span> </span><span class="WHIT">    </span><span class="NAME">this.stateRestore</span><span class="PUNC">(</span><span class="NAME">bufferContext</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">bufferState</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1768</span> 
<span class='line'>1769</span> </span><span class="WHIT">    </span><span class="NAME">image.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropWidth</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1770</span> </span><span class="WHIT">    </span><span class="NAME">image.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cropHeight</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1771</span> 
<span class='line'>1772</span> </span><span class="WHIT">    </span><span class="NAME">bufferState</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerState</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerData</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">bufferData</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1773</span> 
<span class='line'>1774</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.imageSizeChange</span><span class="PUNC">(</span><span class="NAME">cropWidth</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cropHeight</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1775</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.canvasSizeChange</span><span class="PUNC">(</span><span class="NAME">scaledWidth</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>1776</span>           </span><span class="NAME">scaledHeight</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">image.canvasScale</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1777</span> 
<span class='line'>1778</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1779</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1780</span> 
<span class='line'>1781</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1782</span>    * Save the state of a Canvas context.
<span class='line'>1783</span>    *
<span class='line'>1784</span>    * @param {CanvasRenderingContext2D} context The 2D context of the Canvas 
<span class='line'>1785</span>    * element you want to save the state.
<span class='line'>1786</span>    *
<span class='line'>1787</span>    * @returns {Object} The object has all the state properties and values.
<span class='line'>1788</span>    */</span><span class="WHIT">
<span class='line'>1789</span> </span><span class="WHIT">  </span><span class="NAME">this.stateSave</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">context</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1790</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">context</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">context.canvas</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">this.stateProperties</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1791</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1792</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1793</span> 
<span class='line'>1794</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">stateObj</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="PUNC">}</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1795</span> </span><span class="WHIT">        </span><span class="NAME">prop</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1796</span> </span><span class="WHIT">        </span><span class="NAME">n</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.stateProperties.length</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1797</span> 
<span class='line'>1798</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">n</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1799</span> </span><span class="WHIT">      </span><span class="NAME">prop</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.stateProperties</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1800</span> </span><span class="WHIT">      </span><span class="NAME">stateObj</span><span class="PUNC">[</span><span class="NAME">prop</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">context</span><span class="PUNC">[</span><span class="NAME">prop</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1801</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1802</span> 
<span class='line'>1803</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">stateObj</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1804</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1805</span> 
<span class='line'>1806</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1807</span>    * Restore the state of a Canvas context.
<span class='line'>1808</span>    *
<span class='line'>1809</span>    * @param {CanvasRenderingContext2D} context The 2D context where you want to 
<span class='line'>1810</span>    * restore the state.
<span class='line'>1811</span>    *
<span class='line'>1812</span>    * @param {Object} stateObj The state object saved by the {@link 
<span class='line'>1813</span>    * PaintWeb#stateSave} method.
<span class='line'>1814</span>    *
<span class='line'>1815</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>1816</span>    */</span><span class="WHIT">
<span class='line'>1817</span> </span><span class="WHIT">  </span><span class="NAME">this.stateRestore</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">context</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">stateObj</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1818</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">context</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">context.canvas</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1819</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1820</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1821</span> 
<span class='line'>1822</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">state</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">stateObj</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1823</span> </span><span class="WHIT">      </span><span class="NAME">context</span><span class="PUNC">[</span><span class="NAME">state</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">stateObj</span><span class="PUNC">[</span><span class="NAME">state</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1824</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1825</span> 
<span class='line'>1826</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1827</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1828</span> 
<span class='line'>1829</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1830</span>    * Allow shadows. This method re-enabled shadow rendering, if it was enabled 
<span class='line'>1831</span>    * before shadows were disallowed.
<span class='line'>1832</span>    *
<span class='line'>1833</span>    * &lt;p>The {@link pwlib.appEvent.shadowAllow} event is dispatched.
<span class='line'>1834</span>    */</span><span class="WHIT">
<span class='line'>1835</span> </span><span class="WHIT">  </span><span class="NAME">this.shadowAllow</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1836</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.shadowAllowed</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">this.shadowSupported</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1837</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1838</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1839</span> 
<span class='line'>1840</span> </span><span class="WHIT">    </span><span class="COMM">// Note that some daily builds of Webkit in Chromium fail to render the </span><span class="WHIT">
<span class='line'>1841</span> </span><span class="WHIT">    </span><span class="COMM">// shadow when context.drawImage() is used (see the this.layerUpdate()).</span><span class="WHIT">
<span class='line'>1842</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">context</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.context</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1843</span> </span><span class="WHIT">        </span><span class="NAME">cfg</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.config.shadow</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1844</span> 
<span class='line'>1845</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cfg.enable</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1846</span> </span><span class="WHIT">      </span><span class="NAME">context.shadowColor</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadowColor</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1847</span> </span><span class="WHIT">      </span><span class="NAME">context.shadowOffsetX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadowOffsetX</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1848</span> </span><span class="WHIT">      </span><span class="NAME">context.shadowOffsetY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadowOffsetY</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1849</span> </span><span class="WHIT">      </span><span class="NAME">context.shadowBlur</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadowBlur</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1850</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1851</span> 
<span class='line'>1852</span> </span><span class="WHIT">    </span><span class="NAME">this.shadowAllowed</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1853</span> 
<span class='line'>1854</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.shadowAllow</span><span class="PUNC">(</span><span class="KEYW">true</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1855</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1856</span> 
<span class='line'>1857</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1858</span>    * Disallow shadows. This method disables shadow rendering, if it is enabled.
<span class='line'>1859</span>    *
<span class='line'>1860</span>    * &lt;p>The {@link pwlib.appEvent.shadowAllow} event is dispatched.
<span class='line'>1861</span>    */</span><span class="WHIT">
<span class='line'>1862</span> </span><span class="WHIT">  </span><span class="NAME">this.shadowDisallow</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1863</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">this.shadowAllowed</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">this.shadowSupported</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1864</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1865</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1866</span> 
<span class='line'>1867</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.config.shadow.enable</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1868</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">context</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.context</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1869</span> </span><span class="WHIT">      </span><span class="NAME">context.shadowColor</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'rgba(0,0,0,0)'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1870</span> </span><span class="WHIT">      </span><span class="NAME">context.shadowOffsetX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1871</span> </span><span class="WHIT">      </span><span class="NAME">context.shadowOffsetY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1872</span> </span><span class="WHIT">      </span><span class="NAME">context.shadowBlur</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1873</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1874</span> 
<span class='line'>1875</span> </span><span class="WHIT">    </span><span class="NAME">this.shadowAllowed</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1876</span> 
<span class='line'>1877</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.shadowAllow</span><span class="PUNC">(</span><span class="KEYW">false</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1878</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1879</span> 
<span class='line'>1880</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1881</span>    * Update the current image layer by moving the pixels from the buffer onto 
<span class='line'>1882</span>    * the layer. This method also adds a point into the history.
<span class='line'>1883</span>    *
<span class='line'>1884</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>1885</span>    */</span><span class="WHIT">
<span class='line'>1886</span> </span><span class="WHIT">  </span><span class="NAME">this.layerUpdate</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1887</span> </span><span class="WHIT">    </span><span class="NAME">this.layer.context.drawImage</span><span class="PUNC">(</span><span class="NAME">this.buffer.canvas</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1888</span> </span><span class="WHIT">    </span><span class="NAME">this.buffer.context.clearRect</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.image.width</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.image.height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1889</span> </span><span class="WHIT">    </span><span class="NAME">this.historyAdd</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1890</span> 
<span class='line'>1891</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1892</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1893</span> 
<span class='line'>1894</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1895</span>    * Add the current image layer to the history.
<span class='line'>1896</span>    *
<span class='line'>1897</span>    * &lt;p>Once the history state has been updated, this method dispatches the 
<span class='line'>1898</span>    * {@link pwlib.appEvent.historyUpdate} event.
<span class='line'>1899</span>    *
<span class='line'>1900</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>1901</span>    */</span><span class="WHIT">
<span class='line'>1902</span> </span><span class="WHIT">  </span><span class="COMM">// TODO: some day it would be nice to implement a hybrid history system.</span><span class="WHIT">
<span class='line'>1903</span> </span><span class="WHIT">  </span><span class="NAME">this.historyAdd</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1904</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">layerContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.context</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1905</span> </span><span class="WHIT">        </span><span class="NAME">history</span><span class="WHIT">      </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.history</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1906</span> </span><span class="WHIT">        </span><span class="NAME">prevPos</span><span class="WHIT">      </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">history.pos</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1907</span> 
<span class='line'>1908</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">layerContext.getImageData</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1909</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1910</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1911</span> 
<span class='line'>1912</span> </span><span class="WHIT">    </span><span class="COMM">// We are in an undo-step, trim until the end, eliminating any possible redo-steps.</span><span class="WHIT">
<span class='line'>1913</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">prevPos</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">history.states.length</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1914</span> </span><span class="WHIT">      </span><span class="NAME">history.states.splice</span><span class="PUNC">(</span><span class="NAME">prevPos</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">history.states.length</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1915</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1916</span> 
<span class='line'>1917</span> </span><span class="WHIT">    </span><span class="COMM">// TODO: in case of "out of memory" errors... I should show up some error.</span><span class="WHIT">
<span class='line'>1918</span> </span><span class="WHIT">    </span><span class="KEYW">try</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1919</span> </span><span class="WHIT">      </span><span class="NAME">history.states.push</span><span class="PUNC">(</span><span class="NAME">layerContext.getImageData</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">this.image.width</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>1920</span>             </span><span class="NAME">this.image.height</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1921</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">catch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">err</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1922</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1923</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1924</span> 
<span class='line'>1925</span> </span><span class="WHIT">    </span><span class="COMM">// If we have too many history ImageDatas, remove the oldest ones</span><span class="WHIT">
<span class='line'>1926</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'historyLimit'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.config</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT">
<span class='line'>1927</span> </span><span class="WHIT">        </span><span class="NAME">history.states.length</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">this.config.historyLimit</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1928</span> 
<span class='line'>1929</span> </span><span class="WHIT">      </span><span class="NAME">history.states.splice</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">history.states.length</span><span class="WHIT"> 
<span class='line'>1930</span>           </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">this.config.historyLimit</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1931</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1932</span> </span><span class="WHIT">    </span><span class="NAME">history.pos</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">history.states.length</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1933</span> 
<span class='line'>1934</span> </span><span class="WHIT">    </span><span class="NAME">this.image.modified</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1935</span> 
<span class='line'>1936</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.historyUpdate</span><span class="PUNC">(</span><span class="NAME">history.pos</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevPos</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>1937</span>           </span><span class="NAME">history.pos</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1938</span> 
<span class='line'>1939</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1940</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1941</span> 
<span class='line'>1942</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>1943</span>    * Jump to any ImageData/position in the history.
<span class='line'>1944</span>    *
<span class='line'>1945</span>    * &lt;p>Once the history state has been updated, this method dispatches the 
<span class='line'>1946</span>    * {@link pwlib.appEvent.historyUpdate} event.
<span class='line'>1947</span>    *
<span class='line'>1948</span>    * @param {Number|String} pos The history position to jump to.
<span class='line'>1949</span>    * 
<span class='line'>1950</span>    * &lt;p>If the value is a number, then it must point to an existing index in the  
<span class='line'>1951</span>    * &lt;var>{@link PaintWeb#history}.states&lt;/var> array.
<span class='line'>1952</span>    *
<span class='line'>1953</span>    * &lt;p>If the value is a string, it must be "undo" or "redo".
<span class='line'>1954</span>    *
<span class='line'>1955</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>1956</span>    */</span><span class="WHIT">
<span class='line'>1957</span> </span><span class="WHIT">  </span><span class="NAME">this.historyGoto</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pos</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1958</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">layerContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.context</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1959</span> </span><span class="WHIT">        </span><span class="NAME">image</span><span class="WHIT">        </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.image</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1960</span> </span><span class="WHIT">        </span><span class="NAME">history</span><span class="WHIT">      </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.history</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1961</span> 
<span class='line'>1962</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">history.states.length</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">layerContext.putImageData</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1963</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1964</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1965</span> 
<span class='line'>1966</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cpos</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">history.pos</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1967</span> 
<span class='line'>1968</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'undo'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1969</span> </span><span class="WHIT">      </span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cpos</span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1970</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'redo'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1971</span> </span><span class="WHIT">      </span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cpos</span><span class="PUNC">+</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1972</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1973</span> 
<span class='line'>1974</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">history.states.length</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1975</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1976</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1977</span> 
<span class='line'>1978</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">himg</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">history.states</span><span class="PUNC">[</span><span class="NAME">pos</span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1979</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">himg</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1980</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1981</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>1982</span> 
<span class='line'>1983</span> </span><span class="WHIT">    </span><span class="COMM">// Each image in the history can have a different size. As such, the script </span><span class="WHIT">
<span class='line'>1984</span> </span><span class="WHIT">    </span><span class="COMM">// must take this into consideration.</span><span class="WHIT">
<span class='line'>1985</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">w</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathMin</span><span class="PUNC">(</span><span class="NAME">image.width</span><span class="PUNC">,</span><span class="WHIT">  </span><span class="NAME">himg.width</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>1986</span> </span><span class="WHIT">        </span><span class="NAME">h</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathMin</span><span class="PUNC">(</span><span class="NAME">image.height</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">himg.height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1987</span> 
<span class='line'>1988</span> </span><span class="WHIT">    </span><span class="NAME">layerContext.clearRect</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1989</span> 
<span class='line'>1990</span> </span><span class="WHIT">    </span><span class="KEYW">try</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1991</span> </span><span class="WHIT">      </span><span class="COMM">// Firefox 3 does not clip the image, if needed.</span><span class="WHIT">
<span class='line'>1992</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.putImageData</span><span class="PUNC">(</span><span class="NAME">himg</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">w</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">h</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1993</span> 
<span class='line'>1994</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">catch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">err</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>1995</span> </span><span class="WHIT">      </span><span class="COMM">// The workaround is to use a new canvas from which we can copy the </span><span class="WHIT">
<span class='line'>1996</span> </span><span class="WHIT">      </span><span class="COMM">// history image without causing any exceptions.</span><span class="WHIT">
<span class='line'>1997</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">tmp</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'canvas'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1998</span> </span><span class="WHIT">      </span><span class="NAME">tmp.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">himg.width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>1999</span> </span><span class="WHIT">      </span><span class="NAME">tmp.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">himg.height</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2000</span> 
<span class='line'>2001</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">tmp2</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">tmp.getContext</span><span class="PUNC">(</span><span class="STRN">'2d'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2002</span> </span><span class="WHIT">      </span><span class="NAME">tmp2.putImageData</span><span class="PUNC">(</span><span class="NAME">himg</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2003</span> 
<span class='line'>2004</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.drawImage</span><span class="PUNC">(</span><span class="NAME">tmp</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2005</span> 
<span class='line'>2006</span> </span><span class="WHIT">      </span><span class="NAME">tmp2</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">tmp</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2007</span> </span><span class="WHIT">      </span><span class="KEYW">delete</span><span class="WHIT"> </span><span class="NAME">tmp2</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">tmp</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2008</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2009</span> 
<span class='line'>2010</span> </span><span class="WHIT">    </span><span class="NAME">history.pos</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pos</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2011</span> 
<span class='line'>2012</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.historyUpdate</span><span class="PUNC">(</span><span class="NAME">pos</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cpos</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>2013</span>           </span><span class="NAME">history.states.length</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2014</span> 
<span class='line'>2015</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2016</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2017</span> 
<span class='line'>2018</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2019</span>    * Clear the image history.
<span class='line'>2020</span>    *
<span class='line'>2021</span>    * &lt;p>This method dispatches the {@link pwlib.appEvent.historyUpdate} event.
<span class='line'>2022</span>    *
<span class='line'>2023</span>    * @private
<span class='line'>2024</span>    */</span><span class="WHIT">
<span class='line'>2025</span> </span><span class="WHIT">  </span><span class="NAME">this.historyReset</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2026</span> </span><span class="WHIT">    </span><span class="NAME">this.history.pos</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2027</span> </span><span class="WHIT">    </span><span class="NAME">this.history.states</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">[</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2028</span> 
<span class='line'>2029</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.historyUpdate</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2030</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2031</span> 
<span class='line'>2032</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2033</span>    * Perform horizontal/vertical line snapping. This method updates the mouse 
<span class='line'>2034</span>    * coordinates to "snap" with the given coordinates.
<span class='line'>2035</span>    *
<span class='line'>2036</span>    * @param {Number} x The x-axis location.
<span class='line'>2037</span>    * @param {Number} y The y-axis location.
<span class='line'>2038</span>    */</span><span class="WHIT">
<span class='line'>2039</span> </span><span class="WHIT">  </span><span class="NAME">this.toolSnapXY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">x</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2040</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">diffx</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathAbs</span><span class="PUNC">(</span><span class="NAME">_self.mouse.x</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2041</span> </span><span class="WHIT">        </span><span class="NAME">diffy</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">MathAbs</span><span class="PUNC">(</span><span class="NAME">_self.mouse.y</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2042</span> 
<span class='line'>2043</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">diffx</span><span class="WHIT"> </span><span class="PUNC">></span><span class="WHIT"> </span><span class="NAME">diffy</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2044</span> </span><span class="WHIT">      </span><span class="NAME">_self.mouse.y</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">y</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2045</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2046</span> </span><span class="WHIT">      </span><span class="NAME">_self.mouse.x</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">x</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2047</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2048</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2049</span> 
<span class='line'>2050</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2051</span>    * Activate a drawing tool by ID.
<span class='line'>2052</span>    *
<span class='line'>2053</span>    * &lt;p>The &lt;var>id&lt;/var> provided must be of an existing drawing tool, one that  
<span class='line'>2054</span>    * has been installed.
<span class='line'>2055</span>    *
<span class='line'>2056</span>    * &lt;p>The &lt;var>ev&lt;/var> argument is an optional DOM Event object which is 
<span class='line'>2057</span>    * useful when dealing with different types of tool activation, either by 
<span class='line'>2058</span>    * keyboard or by mouse events. Tool-specific code can implement different 
<span class='line'>2059</span>    * functionality based on events.
<span class='line'>2060</span>    *
<span class='line'>2061</span>    * &lt;p>This method dispatches the {@link pwlib.appEvent.toolPreactivate} event 
<span class='line'>2062</span>    * before creating the new tool instance. Once the new tool is successfully 
<span class='line'>2063</span>    * activated, the {@link pwlib.appEvent.toolActivate} event is also 
<span class='line'>2064</span>    * dispatched.
<span class='line'>2065</span>    *
<span class='line'>2066</span>    * @param {String} id The ID of the drawing tool to be activated.
<span class='line'>2067</span>    * @param {Event} [ev] The DOM Event object.
<span class='line'>2068</span>    *
<span class='line'>2069</span>    * @returns {Boolean} True if the tool has been activated, or false if not.
<span class='line'>2070</span>    *
<span class='line'>2071</span>    * @see PaintWeb#toolRegister Register a new drawing tool.
<span class='line'>2072</span>    * @see PaintWeb#toolUnregister Unregister a drawing tool.
<span class='line'>2073</span>    *
<span class='line'>2074</span>    * @see pwlib.tools The object holding all the drawing tools.
<span class='line'>2075</span>    * @see pwlib.appEvent.toolPreactivate
<span class='line'>2076</span>    * @see pwlib.appEvent.toolActivate
<span class='line'>2077</span>    */</span><span class="WHIT">
<span class='line'>2078</span> </span><span class="WHIT">  </span><span class="NAME">this.toolActivate</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2079</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="PUNC">(</span><span class="NAME">id</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">pwlib.tools</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">pwlib.tools</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'function'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2080</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2081</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2082</span> 
<span class='line'>2083</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">tool</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pwlib.tools</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2084</span> </span><span class="WHIT">        </span><span class="NAME">prevId</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.tool</span><span class="WHIT"> </span><span class="PUNC">?</span><span class="WHIT"> </span><span class="NAME">this.tool._id</span><span class="WHIT"> </span><span class="PUNC">:</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2085</span> 
<span class='line'>2086</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">prevId</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">this.tool</span><span class="WHIT"> </span><span class="KEYW">instanceof</span><span class="WHIT"> </span><span class="NAME">pwlib.tools</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2087</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2088</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2089</span> 
<span class='line'>2090</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cancel</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.toolPreactivate</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevId</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2091</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cancel</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2092</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2093</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2094</span> 
<span class='line'>2095</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">tool_obj</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">tool</span><span class="PUNC">(</span><span class="KEYW">this</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2096</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">tool_obj</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2097</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2098</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2099</span> 
<span class='line'>2100</span> </span><span class="WHIT">    </span><span class="COMM">/*
<span class='line'>2101</span>      * Each tool can implement its own mouse and keyboard events handler.
<span class='line'>2102</span>      * Additionally, tool objects can implement handlers for the deactivation 
<span class='line'>2103</span>      * and activation events.
<span class='line'>2104</span>      * Given tool1 is active and tool2 is going to be activated, then the 
<span class='line'>2105</span>      * following event handlers will be called:
<span class='line'>2106</span>      *
<span class='line'>2107</span>      * tool2.preActivate
<span class='line'>2108</span>      * tool1.deactivate
<span class='line'>2109</span>      * tool2.activate
<span class='line'>2110</span>      *
<span class='line'>2111</span>      * In the "preActivate" event handler you can cancel the tool activation by 
<span class='line'>2112</span>      * returning a value which evaluates to false.
<span class='line'>2113</span>      */</span><span class="WHIT">
<span class='line'>2114</span> 
<span class='line'>2115</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'preActivate'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">tool_obj</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">tool_obj.preActivate</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2116</span> </span><span class="WHIT">      </span><span class="NAME">tool_obj</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2117</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2118</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2119</span> 
<span class='line'>2120</span> </span><span class="WHIT">    </span><span class="COMM">// Deactivate the previously active tool</span><span class="WHIT">
<span class='line'>2121</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">this.tool</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="STRN">'deactivate'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.tool</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2122</span> </span><span class="WHIT">      </span><span class="NAME">this.tool.deactivate</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2123</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2124</span> 
<span class='line'>2125</span> </span><span class="WHIT">    </span><span class="NAME">this.tool</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">tool_obj</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2126</span> 
<span class='line'>2127</span> </span><span class="WHIT">    </span><span class="NAME">this.mouse.buttonDown</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2128</span> 
<span class='line'>2129</span> </span><span class="WHIT">    </span><span class="COMM">// Besides the "constructor", each tool can also have code which is run </span><span class="WHIT">
<span class='line'>2130</span> </span><span class="WHIT">    </span><span class="COMM">// after the deactivation of the previous tool.</span><span class="WHIT">
<span class='line'>2131</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'activate'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.tool</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2132</span> </span><span class="WHIT">      </span><span class="NAME">this.tool.activate</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2133</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2134</span> 
<span class='line'>2135</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.toolActivate</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">prevId</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2136</span> 
<span class='line'>2137</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2138</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2139</span> 
<span class='line'>2140</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2141</span>    * Register a new drawing tool into PaintWeb.
<span class='line'>2142</span>    *
<span class='line'>2143</span>    * &lt;p>This method dispatches the {@link pwlib.appEvent.toolRegister} 
<span class='line'>2144</span>    * application event.
<span class='line'>2145</span>    *
<span class='line'>2146</span>    * @param {String} id The ID of the new tool. The tool object must exist in 
<span class='line'>2147</span>    * {@link pwlib.tools}.
<span class='line'>2148</span>    *
<span class='line'>2149</span>    * @returns {Boolean} True if the tool was successfully registered, or false 
<span class='line'>2150</span>    * if not.
<span class='line'>2151</span>    *
<span class='line'>2152</span>    * @see PaintWeb#toolUnregister allows you to unregister tools.
<span class='line'>2153</span>    * @see pwlib.tools Holds all the drawing tools.
<span class='line'>2154</span>    * @see pwlib.appEvent.toolRegister
<span class='line'>2155</span>    */</span><span class="WHIT">
<span class='line'>2156</span> </span><span class="WHIT">  </span><span class="NAME">this.toolRegister</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2157</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'string'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">id</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2158</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2159</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2160</span> 
<span class='line'>2161</span> </span><span class="WHIT">    </span><span class="COMM">// TODO: it would be very nice to create the tool instance on register, for </span><span class="WHIT">
<span class='line'>2162</span> </span><span class="WHIT">    </span><span class="COMM">// further extensibility.</span><span class="WHIT">
<span class='line'>2163</span> 
<span class='line'>2164</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">tool</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pwlib.tools</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2165</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">tool</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'function'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2166</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2167</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2168</span> 
<span class='line'>2169</span> </span><span class="WHIT">    </span><span class="NAME">tool.prototype._id</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">id</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2170</span> 
<span class='line'>2171</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.toolRegister</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2172</span> 
<span class='line'>2173</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">this.tool</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="NAME">this.config.toolDefault</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2174</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">this.toolActivate</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2175</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2176</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2177</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2178</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2179</span> 
<span class='line'>2180</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2181</span>    * Unregister a drawing tool from PaintWeb.
<span class='line'>2182</span>    *
<span class='line'>2183</span>    * &lt;p>This method dispatches the {@link pwlib.appEvent.toolUnregister} 
<span class='line'>2184</span>    * application event.
<span class='line'>2185</span>    *
<span class='line'>2186</span>    * @param {String} id The ID of the tool you want to unregister.
<span class='line'>2187</span>    *
<span class='line'>2188</span>    * @returns {Boolean} True if the tool was unregistered, or false if it does 
<span class='line'>2189</span>    * not exist or some error occurred.
<span class='line'>2190</span>    *
<span class='line'>2191</span>    * @see PaintWeb#toolRegister allows you to register new drawing tools.
<span class='line'>2192</span>    * @see pwlib.tools Holds all the drawing tools.
<span class='line'>2193</span>    * @see pwlib.appEvent.toolUnregister
<span class='line'>2194</span>    */</span><span class="WHIT">
<span class='line'>2195</span> </span><span class="WHIT">  </span><span class="NAME">this.toolUnregister</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2196</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'string'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="PUNC">(</span><span class="NAME">id</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">pwlib.tools</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2197</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2198</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2199</span> 
<span class='line'>2200</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.toolUnregister</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2201</span> 
<span class='line'>2202</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2203</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2204</span> 
<span class='line'>2205</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2206</span>    * Register a new extension into PaintWeb.
<span class='line'>2207</span>    *
<span class='line'>2208</span>    * &lt;p>If the extension object being constructed has the 
<span class='line'>2209</span>    * &lt;code>extensionRegister()&lt;/code> method, then it will be invoked, allowing 
<span class='line'>2210</span>    * any custom extension registration code to run. If the method returns false, 
<span class='line'>2211</span>    * then the extension will not be registered.
<span class='line'>2212</span>    *
<span class='line'>2213</span>    * &lt;p>Once the extension is successfully registered, this method dispatches 
<span class='line'>2214</span>    * the {@link pwlib.appEvent.extensionRegister} application event.
<span class='line'>2215</span>    *
<span class='line'>2216</span>    * @param {String} id The ID of the new extension. The extension object 
<span class='line'>2217</span>    * constructor must exist in {@link pwlib.extensions}.
<span class='line'>2218</span>    *
<span class='line'>2219</span>    * @returns {Boolean} True if the extension was successfully registered, or 
<span class='line'>2220</span>    * false if not.
<span class='line'>2221</span>    *
<span class='line'>2222</span>    * @see PaintWeb#extensionUnregister allows you to unregister extensions.
<span class='line'>2223</span>    * @see PaintWeb#extensions Holds all the instances of registered extensions.
<span class='line'>2224</span>    * @see pwlib.extensions Holds all the extension classes.
<span class='line'>2225</span>    */</span><span class="WHIT">
<span class='line'>2226</span> </span><span class="WHIT">  </span><span class="NAME">this.extensionRegister</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2227</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'string'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">id</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2228</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2229</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2230</span> 
<span class='line'>2231</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">func</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">pwlib.extensions</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2232</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">func</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'function'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2233</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2234</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2235</span> 
<span class='line'>2236</span> </span><span class="WHIT">    </span><span class="NAME">func.prototype._id</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">id</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2237</span> 
<span class='line'>2238</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">obj</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">func</span><span class="PUNC">(</span><span class="NAME">_self</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2239</span> 
<span class='line'>2240</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'extensionRegister'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">obj</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">obj.extensionRegister</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2241</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2242</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2243</span> 
<span class='line'>2244</span> </span><span class="WHIT">    </span><span class="NAME">this.extensions</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">obj</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2245</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.extensionRegister</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2246</span> 
<span class='line'>2247</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2248</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2249</span> 
<span class='line'>2250</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2251</span>    * Unregister an extension from PaintWeb.
<span class='line'>2252</span>    *
<span class='line'>2253</span>    * &lt;p>If the extension object being destructed has the 
<span class='line'>2254</span>    * &lt;code>extensionUnregister()&lt;/code> method, then it will be invoked, 
<span class='line'>2255</span>    * allowing any custom extension removal code to run.
<span class='line'>2256</span>    *
<span class='line'>2257</span>    * &lt;p>Before the extension is unregistered, this method dispatches the {@link 
<span class='line'>2258</span>    * pwlib.appEvent.extensionUnregister} application event.
<span class='line'>2259</span>    *
<span class='line'>2260</span>    * @param {String} id The ID of the extension object you want to unregister.
<span class='line'>2261</span>    *
<span class='line'>2262</span>    * @returns {Boolean} True if the extension was removed, or false if it does 
<span class='line'>2263</span>    * not exist or some error occurred.
<span class='line'>2264</span>    *
<span class='line'>2265</span>    * @see PaintWeb#extensionRegister allows you to register new extensions.
<span class='line'>2266</span>    * @see PaintWeb#extensions Holds all the instances of registered extensions.
<span class='line'>2267</span>    * @see pwlib.extensions Holds all the extension classes.
<span class='line'>2268</span>    */</span><span class="WHIT">
<span class='line'>2269</span> </span><span class="WHIT">  </span><span class="NAME">this.extensionUnregister</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2270</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'string'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="PUNC">(</span><span class="NAME">id</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.extensions</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2271</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2272</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2273</span> 
<span class='line'>2274</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.extensionUnregister</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2275</span> 
<span class='line'>2276</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="STRN">'extensionUnregister'</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.extensions</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2277</span> </span><span class="WHIT">      </span><span class="NAME">this.extensions</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">.</span><span class="NAME">extensionUnregister</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2278</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2279</span> </span><span class="WHIT">    </span><span class="KEYW">delete</span><span class="WHIT"> </span><span class="NAME">this.extensions</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2280</span> 
<span class='line'>2281</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2282</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2283</span> 
<span class='line'>2284</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2285</span>    * Register a new command in PaintWeb. Commands are simple function objects 
<span class='line'>2286</span>    * which can be invoked by keyboard shortcuts or by GUI elements.
<span class='line'>2287</span>    *
<span class='line'>2288</span>    * &lt;p>Once the command is successfully registered, this method dispatches the 
<span class='line'>2289</span>    * {@link pwlib.appEvent.commandRegister} application event.
<span class='line'>2290</span>    *
<span class='line'>2291</span>    * @param {String} id The ID of the new command.
<span class='line'>2292</span>    * @param {Function} func The command function.
<span class='line'>2293</span>    *
<span class='line'>2294</span>    * @returns {Boolean} True if the command was successfully registered, or 
<span class='line'>2295</span>    * false if not.
<span class='line'>2296</span>    *
<span class='line'>2297</span>    * @see PaintWeb#commandUnregister allows you to unregister commands.
<span class='line'>2298</span>    * @see PaintWeb#commands Holds all the registered commands.
<span class='line'>2299</span>    */</span><span class="WHIT">
<span class='line'>2300</span> </span><span class="WHIT">  </span><span class="NAME">this.commandRegister</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">func</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2301</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'string'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">func</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'function'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> 
<span class='line'>2302</span>         </span><span class="NAME">this.commands</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2303</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2304</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2305</span> 
<span class='line'>2306</span> </span><span class="WHIT">    </span><span class="NAME">this.commands</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">func</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2307</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.commandRegister</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2308</span> 
<span class='line'>2309</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2310</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2311</span> 
<span class='line'>2312</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2313</span>    * Unregister a command from PaintWeb.
<span class='line'>2314</span>    *
<span class='line'>2315</span>    * &lt;p>Before the command is unregistered, this method dispatches the {@link 
<span class='line'>2316</span>    * pwlib.appEvent.commandUnregister} application event.
<span class='line'>2317</span>    *
<span class='line'>2318</span>    * @param {String} id The ID of the command you want to unregister.
<span class='line'>2319</span>    *
<span class='line'>2320</span>    * @returns {Boolean} True if the command was removed successfully, or false 
<span class='line'>2321</span>    * if not.
<span class='line'>2322</span>    *
<span class='line'>2323</span>    * @see PaintWeb#commandRegister allows you to register new commands.
<span class='line'>2324</span>    * @see PaintWeb#commands Holds all the registered commands.
<span class='line'>2325</span>    */</span><span class="WHIT">
<span class='line'>2326</span> </span><span class="WHIT">  </span><span class="NAME">this.commandUnregister</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2327</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'string'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="PUNC">(</span><span class="NAME">id</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.commands</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2328</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2329</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2330</span> 
<span class='line'>2331</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.commandUnregister</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2332</span> 
<span class='line'>2333</span> </span><span class="WHIT">    </span><span class="KEYW">delete</span><span class="WHIT"> </span><span class="NAME">this.commands</span><span class="PUNC">[</span><span class="NAME">id</span><span class="PUNC">]</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2334</span> 
<span class='line'>2335</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2336</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2337</span> 
<span class='line'>2338</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2339</span>    * Load a script into the document.
<span class='line'>2340</span>    *
<span class='line'>2341</span>    * @param {String} url The script URL you want to insert.
<span class='line'>2342</span>    * @param {Function} [handler] The &lt;code>load&lt;/code> event handler you want.
<span class='line'>2343</span>    */</span><span class="WHIT">
<span class='line'>2344</span> </span><span class="WHIT">  </span><span class="NAME">this.scriptLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">url</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">handler</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2345</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">handler</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2346</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">elem</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'script'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2347</span> </span><span class="WHIT">      </span><span class="NAME">elem.type</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'text/javascript'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2348</span> </span><span class="WHIT">      </span><span class="NAME">elem.src</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">url</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2349</span> </span><span class="WHIT">      </span><span class="NAME">this.elems.head.appendChild</span><span class="PUNC">(</span><span class="NAME">elem</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2350</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2351</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2352</span> 
<span class='line'>2353</span> </span><span class="WHIT">    </span><span class="COMM">// huh, use XHR then eval() the code.</span><span class="WHIT">
<span class='line'>2354</span> </span><span class="WHIT">    </span><span class="COMM">// browsers do not dispatch the 'load' event reliably for script elements.</span><span class="WHIT">
<span class='line'>2355</span> 
<span class='line'>2356</span> </span><span class="WHIT">    </span><span class="COMM">/** @ignore */</span><span class="WHIT">
<span class='line'>2357</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">xhr</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">XMLHttpRequest</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2358</span> 
<span class='line'>2359</span> </span><span class="WHIT">    </span><span class="COMM">/** @ignore */</span><span class="WHIT">
<span class='line'>2360</span> </span><span class="WHIT">    </span><span class="NAME">xhr.onreadystatechange</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2361</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">xhr</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">xhr.readyState</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">4</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2362</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2363</span> 
<span class='line'>2364</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">(</span><span class="NAME">xhr.status</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">304</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">xhr.status</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NUMB">200</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> 
<span class='line'>2365</span>           </span><span class="PUNC">!</span><span class="NAME">xhr.responseText</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2366</span> </span><span class="WHIT">        </span><span class="NAME">handler</span><span class="PUNC">(</span><span class="KEYW">false</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">xhr</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2367</span> 
<span class='line'>2368</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2369</span> </span><span class="WHIT">        </span><span class="KEYW">try</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2370</span> </span><span class="WHIT">          </span><span class="NAME">eval.call</span><span class="PUNC">(</span><span class="NAME">win</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">xhr.responseText</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2371</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">catch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">err</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2372</span> </span><span class="WHIT">          </span><span class="NAME">eval</span><span class="PUNC">(</span><span class="NAME">xhr.responseText</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">win</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2373</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2374</span> </span><span class="WHIT">        </span><span class="NAME">handler</span><span class="PUNC">(</span><span class="KEYW">true</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">xhr</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2375</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2376</span> 
<span class='line'>2377</span> </span><span class="WHIT">      </span><span class="NAME">xhr</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2378</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2379</span> 
<span class='line'>2380</span> </span><span class="WHIT">    </span><span class="NAME">xhr.open</span><span class="PUNC">(</span><span class="STRN">'GET'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">url</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2381</span> </span><span class="WHIT">    </span><span class="NAME">xhr.send</span><span class="PUNC">(</span><span class="STRN">''</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2382</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2383</span> 
<span class='line'>2384</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2385</span>    * Insert a stylesheet into the document.
<span class='line'>2386</span>    *
<span class='line'>2387</span>    * @param {String} id The stylesheet ID. This is used to avoid inserting the 
<span class='line'>2388</span>    * same style in the document.
<span class='line'>2389</span>    * @param {String} url The URL of the stylesheet you want to insert.
<span class='line'>2390</span>    * @param {String} [media='screen, projection'] The media attribute.
<span class='line'>2391</span>    * @param {Function} [handler] The &lt;code>load&lt;/code> event handler.
<span class='line'>2392</span>    */</span><span class="WHIT">
<span class='line'>2393</span> </span><span class="WHIT">  </span><span class="NAME">this.styleLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">url</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">media</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">handler</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2394</span> </span><span class="WHIT">    </span><span class="NAME">id</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'paintweb_style_'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">id</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2395</span> 
<span class='line'>2396</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">elem</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.getElementById</span><span class="PUNC">(</span><span class="NAME">id</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2397</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">elem</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2398</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2399</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2400</span> 
<span class='line'>2401</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">media</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2402</span> </span><span class="WHIT">      </span><span class="NAME">media</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'screen, projection'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2403</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2404</span> 
<span class='line'>2405</span> </span><span class="WHIT">    </span><span class="NAME">elem</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'link'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2406</span> 
<span class='line'>2407</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">handler</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2408</span> </span><span class="WHIT">      </span><span class="NAME">elem.addEventListener</span><span class="PUNC">(</span><span class="STRN">'load'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">handler</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2409</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2410</span> 
<span class='line'>2411</span> </span><span class="WHIT">    </span><span class="NAME">elem.id</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">id</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2412</span> </span><span class="WHIT">    </span><span class="NAME">elem.rel</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'stylesheet'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2413</span> </span><span class="WHIT">    </span><span class="NAME">elem.type</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'text/css'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2414</span> </span><span class="WHIT">    </span><span class="NAME">elem.media</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">media</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2415</span> </span><span class="WHIT">    </span><span class="NAME">elem.href</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">url</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2416</span> 
<span class='line'>2417</span> </span><span class="WHIT">    </span><span class="NAME">this.elems.head.appendChild</span><span class="PUNC">(</span><span class="NAME">elem</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2418</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2419</span> 
<span class='line'>2420</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2421</span>    * Perform action undo.
<span class='line'>2422</span>    *
<span class='line'>2423</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>2424</span>    *
<span class='line'>2425</span>    * @see PaintWeb#historyGoto The method invoked by this command.
<span class='line'>2426</span>    */</span><span class="WHIT">
<span class='line'>2427</span> </span><span class="WHIT">  </span><span class="NAME">this.historyUndo</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2428</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">_self.historyGoto</span><span class="PUNC">(</span><span class="STRN">'undo'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2429</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2430</span> 
<span class='line'>2431</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2432</span>    * Perform action redo.
<span class='line'>2433</span>    *
<span class='line'>2434</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>2435</span>    *
<span class='line'>2436</span>    * @see PaintWeb#historyGoto The method invoked by this command.
<span class='line'>2437</span>    */</span><span class="WHIT">
<span class='line'>2438</span> </span><span class="WHIT">  </span><span class="NAME">this.historyRedo</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2439</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">_self.historyGoto</span><span class="PUNC">(</span><span class="STRN">'redo'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2440</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2441</span> 
<span class='line'>2442</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2443</span>    * Load an image. By loading an image the history is cleared and the Canvas 
<span class='line'>2444</span>    * dimensions are updated to fit the new image.
<span class='line'>2445</span>    *
<span class='line'>2446</span>    * &lt;p>This method dispatches two application events: {@link 
<span class='line'>2447</span>    * pwlib.appEvent.imageSizeChange} and {@link 
<span class='line'>2448</span>    * pwlib.appEvent.canvasSizeChange}.
<span class='line'>2449</span>    *
<span class='line'>2450</span>    * @param {Element} importImage The image element you want to load into the 
<span class='line'>2451</span>    * Canvas.
<span class='line'>2452</span>    *
<span class='line'>2453</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>2454</span>    */</span><span class="WHIT">
<span class='line'>2455</span> </span><span class="WHIT">  </span><span class="NAME">this.imageLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">importImage</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2456</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">importImage</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">importImage.width</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">importImage.height</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> 
<span class='line'>2457</span>         </span><span class="NAME">importImage.nodeType</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="NAME">this.ELEMENT_NODE</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> 
<span class='line'>2458</span>         </span><span class="PUNC">!</span><span class="NAME">pwlib.isSameHost</span><span class="PUNC">(</span><span class="NAME">importImage.src</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">win.location.host</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2459</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2460</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2461</span> 
<span class='line'>2462</span> </span><span class="WHIT">    </span><span class="NAME">this.historyReset</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2463</span> 
<span class='line'>2464</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">layerContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.context</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2465</span> </span><span class="WHIT">        </span><span class="NAME">layerCanvas</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.layer.canvas</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2466</span> </span><span class="WHIT">        </span><span class="NAME">layerStyle</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.style</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2467</span> </span><span class="WHIT">        </span><span class="NAME">bufferCanvas</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.buffer.canvas</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2468</span> </span><span class="WHIT">        </span><span class="NAME">bufferStyle</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">bufferCanvas.style</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2469</span> </span><span class="WHIT">        </span><span class="NAME">image</span><span class="WHIT">        </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">this.image</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2470</span> </span><span class="WHIT">        </span><span class="NAME">styleWidth</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">importImage.width</span><span class="WHIT">  </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">image.canvasScale</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2471</span> </span><span class="WHIT">        </span><span class="NAME">styleHeight</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">importImage.height</span><span class="WHIT"> </span><span class="PUNC">*</span><span class="WHIT"> </span><span class="NAME">image.canvasScale</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2472</span> </span><span class="WHIT">        </span><span class="NAME">result</span><span class="WHIT">       </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2473</span> 
<span class='line'>2474</span> </span><span class="WHIT">    </span><span class="NAME">bufferCanvas.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">importImage.width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2475</span> </span><span class="WHIT">    </span><span class="NAME">bufferCanvas.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">importImage.height</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2476</span> 
<span class='line'>2477</span> </span><span class="WHIT">    </span><span class="KEYW">try</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2478</span> </span><span class="WHIT">      </span><span class="NAME">layerContext.drawImage</span><span class="PUNC">(</span><span class="NAME">importImage</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2479</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">catch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">err</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2480</span> </span><span class="WHIT">      </span><span class="NAME">result</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2481</span> </span><span class="WHIT">      </span><span class="NAME">bufferCanvas.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2482</span> </span><span class="WHIT">      </span><span class="NAME">bufferCanvas.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerCanvas.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2483</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2484</span> 
<span class='line'>2485</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">result</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2486</span> </span><span class="WHIT">      </span><span class="NAME">image.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">importImage.width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2487</span> </span><span class="WHIT">      </span><span class="NAME">image.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">importImage.height</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2488</span> </span><span class="WHIT">      </span><span class="COMM">// FIXME: MSIE 9 clears the Canvas element when you change the </span><span class="WHIT">
<span class='line'>2489</span> </span><span class="WHIT">      </span><span class="COMM">// elem.style.width/height... *argh*</span><span class="WHIT">
<span class='line'>2490</span> </span><span class="WHIT">      </span><span class="NAME">bufferStyle.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerStyle.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">styleWidth</span><span class="WHIT">  </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'px'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2491</span> </span><span class="WHIT">      </span><span class="NAME">bufferStyle.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerStyle.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">styleHeight</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">'px'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2492</span> </span><span class="WHIT">      </span><span class="NAME">_self.config.imageLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">importImage</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2493</span> 
<span class='line'>2494</span> </span><span class="WHIT">      </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.imageSizeChange</span><span class="PUNC">(</span><span class="NAME">image.width</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>2495</span>             </span><span class="NAME">image.height</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2496</span> 
<span class='line'>2497</span> </span><span class="WHIT">      </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.canvasSizeChange</span><span class="PUNC">(</span><span class="NAME">styleWidth</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">styleHeight</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>2498</span>             </span><span class="NAME">image.canvasScale</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2499</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2500</span> 
<span class='line'>2501</span> </span><span class="WHIT">    </span><span class="NAME">this.historyAdd</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2502</span> </span><span class="WHIT">    </span><span class="NAME">image.modified</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2503</span> 
<span class='line'>2504</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">result</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2505</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2506</span> 
<span class='line'>2507</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2508</span>    * Clear the image.
<span class='line'>2509</span>    */</span><span class="WHIT">
<span class='line'>2510</span> </span><span class="WHIT">  </span><span class="NAME">this.imageClear</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2511</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">layerContext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.layer.context</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2512</span> </span><span class="WHIT">        </span><span class="NAME">image</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.image</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2513</span> 
<span class='line'>2514</span> </span><span class="WHIT">    </span><span class="NAME">layerContext.clearRect</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2515</span> 
<span class='line'>2516</span> </span><span class="WHIT">    </span><span class="COMM">// Set the configured background color.</span><span class="WHIT">
<span class='line'>2517</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">layerContext.fillStyle</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2518</span> </span><span class="WHIT">    </span><span class="NAME">layerContext.fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config.backgroundColor</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2519</span> </span><span class="WHIT">    </span><span class="NAME">layerContext.fillRect</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">image.width</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">image.height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2520</span> </span><span class="WHIT">    </span><span class="NAME">layerContext.fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">fillStyle</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2521</span> 
<span class='line'>2522</span> </span><span class="WHIT">    </span><span class="NAME">_self.historyAdd</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2523</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2524</span> 
<span class='line'>2525</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2526</span>    * Save the image.
<span class='line'>2527</span>    *
<span class='line'>2528</span>    * &lt;p>This method dispatches the {@link pwlib.appEvent.imageSave} event.
<span class='line'>2529</span>    *
<span class='line'>2530</span>    * &lt;p>&lt;strong>Note:&lt;/strong> the "Save image" operation relies on integration 
<span class='line'>2531</span>    * extensions. A vanilla configuration of PaintWeb will simply open the the 
<span class='line'>2532</span>    * image in a new tab using a data: URL. You must have some event listener for 
<span class='line'>2533</span>    * the &lt;code>imageSave&lt;/code> event and you must prevent the default action.
<span class='line'>2534</span>    *
<span class='line'>2535</span>    * &lt;p>If the default action for the &lt;code>imageSave&lt;/code> application event 
<span class='line'>2536</span>    * is not prevented, then this method will also dispatch the {@link 
<span class='line'>2537</span>    * pwlib.appEvent.imageSaveResult} application event.
<span class='line'>2538</span>    *
<span class='line'>2539</span>    * &lt;p>Your event handler for the &lt;code>imageSave&lt;/code> event must dispatch 
<span class='line'>2540</span>    * the &lt;code>imageSaveResult&lt;/code> event.
<span class='line'>2541</span>    *
<span class='line'>2542</span>    * @param {String} [type="auto"] Image MIME type. This tells the browser which 
<span class='line'>2543</span>    * format to use when saving the image. If the image format type is not 
<span class='line'>2544</span>    * supported, then the image is saved as PNG.
<span class='line'>2545</span>    *
<span class='line'>2546</span>    * &lt;p>You can use the resulting data URL to check which is the actual image 
<span class='line'>2547</span>    * format.
<span class='line'>2548</span>    *
<span class='line'>2549</span>    * &lt;p>When &lt;var>type&lt;/var> is "auto" then PaintWeb checks the type of the 
<span class='line'>2550</span>    * image currently loaded ({@link PaintWeb.config.imageLoad}). If the format 
<span class='line'>2551</span>    * is recognized, then the same format is used to save the image.
<span class='line'>2552</span>    *
<span class='line'>2553</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>2554</span>    */</span><span class="WHIT">
<span class='line'>2555</span> </span><span class="WHIT">  </span><span class="NAME">this.imageSave</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">type</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2556</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">canvas</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.layer.canvas</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2557</span> </span><span class="WHIT">        </span><span class="NAME">cfg</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2558</span> </span><span class="WHIT">        </span><span class="NAME">img</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.image</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2559</span> </span><span class="WHIT">        </span><span class="NAME">imageLoad</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config.imageLoad</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2560</span> </span><span class="WHIT">        </span><span class="NAME">ext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'png'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">idata</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">src</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pos</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2561</span> 
<span class='line'>2562</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">canvas.toDataURL</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2563</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2564</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2565</span> 
<span class='line'>2566</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">extMap</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="STRN">'jpg'</span><span class="WHIT"> </span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'image/jpeg'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'jpeg'</span><span class="WHIT"> </span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'image/jpeg'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'png'</span><span class="WHIT"> 
<span class='line'>2567</span>       </span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'image/png'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'gif'</span><span class="WHIT"> </span><span class="PUNC">:</span><span class="WHIT"> </span><span class="STRN">'image/gif'</span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2568</span> 
<span class='line'>2569</span> </span><span class="WHIT">    </span><span class="COMM">// Detect the MIME type of the image currently loaded.</span><span class="WHIT">
<span class='line'>2570</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">typeof</span><span class="WHIT"> </span><span class="NAME">type</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'string'</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">type</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2571</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">imageLoad</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">imageLoad.src</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">imageLoad.src.substr</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">5</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'data:'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2572</span> </span><span class="WHIT">        </span><span class="NAME">src</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">imageLoad.src</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2573</span> </span><span class="WHIT">        </span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">src.indexOf</span><span class="PUNC">(</span><span class="STRN">'?'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2574</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2575</span> </span><span class="WHIT">          </span><span class="NAME">src</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">src.substr</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pos</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2576</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2577</span> </span><span class="WHIT">        </span><span class="NAME">ext</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">src.substr</span><span class="PUNC">(</span><span class="NAME">src.lastIndexOf</span><span class="PUNC">(</span><span class="STRN">'.'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">.</span><span class="NAME">toLowerCase</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2578</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2579</span> 
<span class='line'>2580</span> </span><span class="WHIT">      </span><span class="NAME">type</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">extMap</span><span class="PUNC">[</span><span class="NAME">ext</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="STRN">'image/png'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2581</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2582</span> 
<span class='line'>2583</span> </span><span class="WHIT">    </span><span class="COMM">// We consider that other formats than PNG do not support transparencies.  </span><span class="WHIT">
<span class='line'>2584</span> </span><span class="WHIT">    </span><span class="COMM">// Thus, we create a new Canvas element for which we set the configured </span><span class="WHIT">
<span class='line'>2585</span> </span><span class="WHIT">    </span><span class="COMM">// background color, and we render the image onto it.</span><span class="WHIT">
<span class='line'>2586</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">type</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'image/png'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2587</span> </span><span class="WHIT">      </span><span class="NAME">canvas</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">doc.createElement</span><span class="PUNC">(</span><span class="STRN">'canvas'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2588</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">context</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">canvas.getContext</span><span class="PUNC">(</span><span class="STRN">'2d'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2589</span> 
<span class='line'>2590</span> </span><span class="WHIT">      </span><span class="NAME">canvas.width</span><span class="WHIT">  </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">img.width</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2591</span> </span><span class="WHIT">      </span><span class="NAME">canvas.height</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">img.height</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2592</span> 
<span class='line'>2593</span> </span><span class="WHIT">      </span><span class="NAME">context.fillStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.backgroundColor</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2594</span> </span><span class="WHIT">      </span><span class="NAME">context.fillRect</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">img.width</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">img.height</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2595</span> </span><span class="WHIT">      </span><span class="NAME">context.drawImage</span><span class="PUNC">(</span><span class="NAME">_self.layer.canvas</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2596</span> 
<span class='line'>2597</span> </span><span class="WHIT">      </span><span class="NAME">context</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2598</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2599</span> 
<span class='line'>2600</span> </span><span class="WHIT">    </span><span class="KEYW">try</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2601</span> </span><span class="WHIT">      </span><span class="COMM">// canvas.toDataURL('image/jpeg', quality) fails in Gecko due to security </span><span class="WHIT">
<span class='line'>2602</span> </span><span class="WHIT">      </span><span class="COMM">// concerns, uh-oh.</span><span class="WHIT">
<span class='line'>2603</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">type</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'image/jpeg'</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">pwlib.browser.gecko</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2604</span> </span><span class="WHIT">        </span><span class="NAME">idata</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">canvas.toDataURL</span><span class="PUNC">(</span><span class="NAME">type</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">cfg.jpegSaveQuality</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2605</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2606</span> </span><span class="WHIT">        </span><span class="NAME">idata</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">canvas.toDataURL</span><span class="PUNC">(</span><span class="NAME">type</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2607</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2608</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">catch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">err</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2609</span> </span><span class="WHIT">      </span><span class="NAME">alert</span><span class="PUNC">(</span><span class="NAME">lang.errorImageSave</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">"\n"</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">err</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2610</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2611</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2612</span> 
<span class='line'>2613</span> </span><span class="WHIT">    </span><span class="NAME">canvas</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2614</span> 
<span class='line'>2615</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">idata</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">idata</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'data:,'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2616</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2617</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2618</span> 
<span class='line'>2619</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.imageSave</span><span class="PUNC">(</span><span class="NAME">idata</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">img.width</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">img.height</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2620</span> </span><span class="WHIT">        </span><span class="NAME">cancel</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.events.dispatch</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2621</span> 
<span class='line'>2622</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">cancel</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2623</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2624</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2625</span> 
<span class='line'>2626</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">imgwin</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.win.open</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2627</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">imgwin</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2628</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2629</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2630</span> 
<span class='line'>2631</span> </span><span class="WHIT">    </span><span class="NAME">imgwin.location</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">idata</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2632</span> </span><span class="WHIT">    </span><span class="NAME">idata</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">null</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2633</span> 
<span class='line'>2634</span> </span><span class="WHIT">    </span><span class="NAME">_self.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.imageSaveResult</span><span class="PUNC">(</span><span class="KEYW">true</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2635</span> 
<span class='line'>2636</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">true</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2637</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2638</span> 
<span class='line'>2639</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2640</span>    * The &lt;code>imageSaveResult&lt;/code> application event handler. This method 
<span class='line'>2641</span>    * PaintWeb-related stuff: for example, the {@link PaintWeb.image.modified} 
<span class='line'>2642</span>    * flag is turned to false.
<span class='line'>2643</span>    *
<span class='line'>2644</span>    * @private
<span class='line'>2645</span>    *
<span class='line'>2646</span>    * @param {pwlib.appEvent.imageSaveResult} ev The application event object.
<span class='line'>2647</span>    *
<span class='line'>2648</span>    * @see {PaintWeb#imageSave} The method which allows you to save the image.
<span class='line'>2649</span>    */</span><span class="WHIT">
<span class='line'>2650</span> </span><span class="WHIT">  </span><span class="NAME">this.imageSaveResultHandler</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2651</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.successful</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2652</span> </span><span class="WHIT">      </span><span class="NAME">_self.image.modified</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2653</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2654</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2655</span> 
<span class='line'>2656</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2657</span>    * Swap the fill and stroke styles. This is just like in Photoshop, if the 
<span class='line'>2658</span>    * user presses X, the fill/stroke colors are swapped.
<span class='line'>2659</span>    *
<span class='line'>2660</span>    * &lt;p>This method dispatches the {@link pwlib.appEvent.configChange} event 
<span class='line'>2661</span>    * twice for each color (strokeStyle and fillStyle).
<span class='line'>2662</span>    */</span><span class="WHIT">
<span class='line'>2663</span> </span><span class="WHIT">  </span><span class="NAME">this.swapFillStroke</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2664</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">fillStyle</span><span class="WHIT">     </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config.fillStyle</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2665</span> </span><span class="WHIT">        </span><span class="NAME">strokeStyle</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.config.strokeStyle</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2666</span> 
<span class='line'>2667</span> </span><span class="WHIT">    </span><span class="NAME">_self.config.fillStyle</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">strokeStyle</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2668</span> </span><span class="WHIT">    </span><span class="NAME">_self.config.strokeStyle</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">fillStyle</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2669</span> 
<span class='line'>2670</span> </span><span class="WHIT">    </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.configChange</span><span class="PUNC">(</span><span class="NAME">strokeStyle</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">fillStyle</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'fillStyle'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">''</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>2671</span>         </span><span class="NAME">_self.config</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2672</span> 
<span class='line'>2673</span> </span><span class="WHIT">    </span><span class="NAME">_self.events.dispatch</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2674</span> 
<span class='line'>2675</span> </span><span class="WHIT">    </span><span class="NAME">ev</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.configChange</span><span class="PUNC">(</span><span class="NAME">fillStyle</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">strokeStyle</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">'strokeStyle'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="STRN">''</span><span class="PUNC">,</span><span class="WHIT"> 
<span class='line'>2676</span>         </span><span class="NAME">_self.config</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2677</span> 
<span class='line'>2678</span> </span><span class="WHIT">    </span><span class="NAME">_self.events.dispatch</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2679</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2680</span> 
<span class='line'>2681</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2682</span>    * Select all the pixels. This activates the selection tool, and selects the 
<span class='line'>2683</span>    * entire image.
<span class='line'>2684</span>    *
<span class='line'>2685</span>    * @param {Event} [ev] The DOM Event object which generated the request.
<span class='line'>2686</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>2687</span>    *
<span class='line'>2688</span>    * @see {pwlib.tools.selection.selectAll} The command implementation.
<span class='line'>2689</span>    */</span><span class="WHIT">
<span class='line'>2690</span> </span><span class="WHIT">  </span><span class="NAME">this.selectAll</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2691</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">_self.toolActivate</span><span class="PUNC">(</span><span class="STRN">'selection'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2692</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">_self.tool.selectAll</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2693</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2694</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2695</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2696</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2697</span> 
<span class='line'>2698</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2699</span>    * Cut the available selection. This only works when the selection tool is 
<span class='line'>2700</span>    * active and when some selection is available.
<span class='line'>2701</span>    *
<span class='line'>2702</span>    * @param {Event} [ev] The DOM Event object which generated the request.
<span class='line'>2703</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>2704</span>    *
<span class='line'>2705</span>    * @see {pwlib.tools.selection.selectionCut} The command implementation.
<span class='line'>2706</span>    */</span><span class="WHIT">
<span class='line'>2707</span> </span><span class="WHIT">  </span><span class="NAME">this.selectionCut</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2708</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">_self.tool</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">_self.tool._id</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'selection'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2709</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2710</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2711</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">_self.tool.selectionCut</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2712</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2713</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2714</span> 
<span class='line'>2715</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2716</span>    * Copy the available selection. This only works when the selection tool is 
<span class='line'>2717</span>    * active and when some selection is available.
<span class='line'>2718</span>    *
<span class='line'>2719</span>    * @param {Event} [ev] The DOM Event object which generated the request.
<span class='line'>2720</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>2721</span>    *
<span class='line'>2722</span>    * @see {pwlib.tools.selection.selectionCopy} The command implementation.
<span class='line'>2723</span>    */</span><span class="WHIT">
<span class='line'>2724</span> </span><span class="WHIT">  </span><span class="NAME">this.selectionCopy</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2725</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">_self.tool</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="NAME">_self.tool._id</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="STRN">'selection'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2726</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2727</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2728</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">_self.tool.selectionCopy</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2729</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2730</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2731</span> 
<span class='line'>2732</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2733</span>    * Paste the current clipboard image. This only works when some ImageData is 
<span class='line'>2734</span>    * available in {@link PaintWeb#clipboard}.
<span class='line'>2735</span>    *
<span class='line'>2736</span>    * @param {Event} [ev] The DOM Event object which generated the request.
<span class='line'>2737</span>    * @returns {Boolean} True if the operation was successful, or false if not.
<span class='line'>2738</span>    *
<span class='line'>2739</span>    * @see {pwlib.tools.selection.clipboardPaste} The command implementation.
<span class='line'>2740</span>    */</span><span class="WHIT">
<span class='line'>2741</span> </span><span class="WHIT">  </span><span class="NAME">this.clipboardPaste</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2742</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">_self.clipboard</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="NAME">_self.toolActivate</span><span class="PUNC">(</span><span class="STRN">'selection'</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2743</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="KEYW">false</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2744</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2745</span> </span><span class="WHIT">      </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="NAME">_self.tool.clipboardPaste</span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2746</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2747</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2748</span> 
<span class='line'>2749</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2750</span>    * The &lt;code>configChange&lt;/code> application event handler. This method 
<span class='line'>2751</span>    * updates the Canvas context properties depending on which configuration 
<span class='line'>2752</span>    * property changed.
<span class='line'>2753</span>    *
<span class='line'>2754</span>    * @private
<span class='line'>2755</span>    * @param {pwlib.appEvent.configChange} ev The application event object.
<span class='line'>2756</span>    */</span><span class="WHIT">
<span class='line'>2757</span> </span><span class="WHIT">  </span><span class="NAME">this.configChangeHandler</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2758</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.group</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'shadow'</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">_self.shadowSupported</span><span class="WHIT"> </span><span class="PUNC">&&</span><span class="WHIT"> </span><span class="NAME">_self.shadowAllowed</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2759</span> </span><span class="WHIT">      </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">context</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">_self.layer.context</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2760</span> </span><span class="WHIT">          </span><span class="NAME">cfg</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.groupRef</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2761</span> 
<span class='line'>2762</span> </span><span class="WHIT">      </span><span class="COMM">// Enable/disable shadows</span><span class="WHIT">
<span class='line'>2763</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.config</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'enable'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2764</span> </span><span class="WHIT">        </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.value</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2765</span> </span><span class="WHIT">          </span><span class="NAME">context.shadowColor</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadowColor</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2766</span> </span><span class="WHIT">          </span><span class="NAME">context.shadowOffsetX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadowOffsetX</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2767</span> </span><span class="WHIT">          </span><span class="NAME">context.shadowOffsetY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadowOffsetY</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2768</span> </span><span class="WHIT">          </span><span class="NAME">context.shadowBlur</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">cfg.shadowBlur</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2769</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2770</span> </span><span class="WHIT">          </span><span class="NAME">context.shadowColor</span><span class="WHIT">   </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">'rgba(0,0,0,0)'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2771</span> </span><span class="WHIT">          </span><span class="NAME">context.shadowOffsetX</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2772</span> </span><span class="WHIT">          </span><span class="NAME">context.shadowOffsetY</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2773</span> </span><span class="WHIT">          </span><span class="NAME">context.shadowBlur</span><span class="WHIT">    </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2774</span> </span><span class="WHIT">        </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2775</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2776</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2777</span> 
<span class='line'>2778</span> </span><span class="WHIT">      </span><span class="COMM">// Do not update any context properties if shadows are not enabled.</span><span class="WHIT">
<span class='line'>2779</span> </span><span class="WHIT">      </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">cfg.enable</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2780</span> </span><span class="WHIT">        </span><span class="KEYW">return</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2781</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2782</span> 
<span class='line'>2783</span> </span><span class="WHIT">      </span><span class="KEYW">switch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.config</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2784</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'shadowBlur'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2785</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'shadowOffsetX'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2786</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'shadowOffsetY'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2787</span> </span><span class="WHIT">          </span><span class="NAME">ev.value</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">ev.value</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2788</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'shadowColor'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2789</span> </span><span class="WHIT">          </span><span class="NAME">context</span><span class="PUNC">[</span><span class="NAME">ev.config</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.value</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2790</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2791</span> 
<span class='line'>2792</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.group</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'line'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2793</span> </span><span class="WHIT">      </span><span class="KEYW">switch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.config</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2794</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'lineWidth'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2795</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'miterLimit'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2796</span> </span><span class="WHIT">          </span><span class="NAME">ev.value</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">parseInt</span><span class="PUNC">(</span><span class="NAME">ev.value</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2797</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'lineJoin'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2798</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'lineCap'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2799</span> </span><span class="WHIT">          </span><span class="NAME">_self.buffer.context</span><span class="PUNC">[</span><span class="NAME">ev.config</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.value</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2800</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2801</span> 
<span class='line'>2802</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.group</span><span class="WHIT"> </span><span class="PUNC">===</span><span class="WHIT"> </span><span class="STRN">'text'</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2803</span> </span><span class="WHIT">      </span><span class="KEYW">switch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.config</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2804</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'textAlign'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2805</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'textBaseline'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2806</span> </span><span class="WHIT">          </span><span class="NAME">_self.buffer.context</span><span class="PUNC">[</span><span class="NAME">ev.config</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.value</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2807</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2808</span> 
<span class='line'>2809</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT"> </span><span class="KEYW">else</span><span class="WHIT"> </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">ev.group</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2810</span> </span><span class="WHIT">      </span><span class="KEYW">switch</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">ev.config</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2811</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'fillStyle'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2812</span> </span><span class="WHIT">        </span><span class="KEYW">case</span><span class="WHIT"> </span><span class="STRN">'strokeStyle'</span><span class="PUNC">:</span><span class="WHIT">
<span class='line'>2813</span> </span><span class="WHIT">          </span><span class="NAME">_self.buffer.context</span><span class="PUNC">[</span><span class="NAME">ev.config</span><span class="PUNC">]</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">ev.value</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2814</span> </span><span class="WHIT">      </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2815</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2816</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2817</span> 
<span class='line'>2818</span> </span><span class="WHIT">  </span><span class="COMM">/**
<span class='line'>2819</span>    * Destroy a PaintWeb instance. This method allows you to unload a PaintWeb 
<span class='line'>2820</span>    * instance. Extensions, tools and commands are unregistered, and the GUI 
<span class='line'>2821</span>    * elements are removed.
<span class='line'>2822</span>    *
<span class='line'>2823</span>    * &lt;p>The scripts and styles loaded are not removed, since they might be used 
<span class='line'>2824</span>    * by other PaintWeb instances.
<span class='line'>2825</span>    *
<span class='line'>2826</span>    * &lt;p>The {@link pwlib.appEvent.appDestroy} application event is dispatched 
<span class='line'>2827</span>    * before the current instance is destroyed.
<span class='line'>2828</span>    */</span><span class="WHIT">
<span class='line'>2829</span> </span><span class="WHIT">  </span><span class="NAME">this.destroy</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2830</span> </span><span class="WHIT">    </span><span class="NAME">this.events.dispatch</span><span class="PUNC">(</span><span class="KEYW">new</span><span class="WHIT"> </span><span class="NAME">appEvent.appDestroy</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2831</span> 
<span class='line'>2832</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">cmd</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.commands</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2833</span> </span><span class="WHIT">      </span><span class="NAME">this.commandUnregister</span><span class="PUNC">(</span><span class="NAME">cmd</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2834</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2835</span> 
<span class='line'>2836</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">ext</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.extensions</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2837</span> </span><span class="WHIT">      </span><span class="NAME">this.extensionUnregister</span><span class="PUNC">(</span><span class="NAME">ext</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2838</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2839</span> 
<span class='line'>2840</span> </span><span class="WHIT">    </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">tool</span><span class="WHIT"> </span><span class="KEYW">in</span><span class="WHIT"> </span><span class="NAME">this.gui.tools</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2841</span> </span><span class="WHIT">      </span><span class="NAME">this.toolUnregister</span><span class="PUNC">(</span><span class="NAME">tool</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2842</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2843</span> 
<span class='line'>2844</span> </span><span class="WHIT">    </span><span class="NAME">this.gui.destroy</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2845</span> 
<span class='line'>2846</span> </span><span class="WHIT">    </span><span class="NAME">this.initialized</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">PaintWeb.INIT_NOT_STARTED</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2847</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2848</span> 
<span class='line'>2849</span> </span><span class="WHIT">  </span><span class="NAME">this.toString</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2850</span> </span><span class="WHIT">    </span><span class="KEYW">return</span><span class="WHIT"> </span><span class="STRN">'PaintWeb v'</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">this.version</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">' (build '</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NAME">this.build</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="STRN">')'</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2851</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2852</span> 
<span class='line'>2853</span> 
<span class='line'>2854</span> </span><span class="WHIT">  </span><span class="NAME">preInit</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2855</span> </span><span class="PUNC">}</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2856</span> 
<span class='line'>2857</span> </span><span class="COMM">/**
<span class='line'>2858</span>  * Application initialization not started.
<span class='line'>2859</span>  * @constant
<span class='line'>2860</span>  */</span><span class="WHIT">
<span class='line'>2861</span> </span><span class="NAME">PaintWeb.INIT_NOT_STARTED</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2862</span> 
<span class='line'>2863</span> </span><span class="COMM">/**
<span class='line'>2864</span>  * Application initialization started.
<span class='line'>2865</span>  * @constant
<span class='line'>2866</span>  */</span><span class="WHIT">
<span class='line'>2867</span> </span><span class="NAME">PaintWeb.INIT_STARTED</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2868</span> 
<span class='line'>2869</span> </span><span class="COMM">/**
<span class='line'>2870</span>  * Application initialization completed successfully.
<span class='line'>2871</span>  * @constant
<span class='line'>2872</span>  */</span><span class="WHIT">
<span class='line'>2873</span> </span><span class="NAME">PaintWeb.INIT_DONE</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">2</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2874</span> 
<span class='line'>2875</span> </span><span class="COMM">/**
<span class='line'>2876</span>  * Application initialization failed.
<span class='line'>2877</span>  * @constant
<span class='line'>2878</span>  */</span><span class="WHIT">
<span class='line'>2879</span> </span><span class="NAME">PaintWeb.INIT_ERROR</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2880</span> 
<span class='line'>2881</span> </span><span class="COMM">/**
<span class='line'>2882</span>  * PaintWeb base folder. This is determined automatically when the PaintWeb 
<span class='line'>2883</span>  * script is added in a page.
<span class='line'>2884</span>  * @type String
<span class='line'>2885</span>  */</span><span class="WHIT">
<span class='line'>2886</span> </span><span class="NAME">PaintWeb.baseFolder</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="STRN">''</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2887</span> 
<span class='line'>2888</span> </span><span class="PUNC">(</span><span class="KEYW">function</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2889</span> </span><span class="WHIT">  </span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">scripts</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">document.getElementsByTagName</span><span class="PUNC">(</span><span class="STRN">'script'</span><span class="PUNC">)</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2890</span> </span><span class="WHIT">      </span><span class="NAME">n</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">scripts.length</span><span class="PUNC">,</span><span class="WHIT">
<span class='line'>2891</span> </span><span class="WHIT">      </span><span class="NAME">pos</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">src</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2892</span> 
<span class='line'>2893</span> </span><span class="WHIT">  </span><span class="COMM">// Determine the baseFolder.</span><span class="WHIT">
<span class='line'>2894</span> 
<span class='line'>2895</span> </span><span class="WHIT">  </span><span class="KEYW">for</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="KEYW">var</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NUMB">0</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="WHIT"> </span><span class="PUNC">&lt;</span><span class="WHIT"> </span><span class="NAME">n</span><span class="PUNC">;</span><span class="WHIT"> </span><span class="NAME">i</span><span class="PUNC">++</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2896</span> </span><span class="WHIT">    </span><span class="NAME">src</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">scripts</span><span class="PUNC">[</span><span class="NAME">i</span><span class="PUNC">]</span><span class="PUNC">.</span><span class="NAME">src</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2897</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="PUNC">!</span><span class="NAME">src</span><span class="WHIT"> </span><span class="PUNC">||</span><span class="WHIT"> </span><span class="PUNC">!</span><span class="REGX">/paintweb(\.dev|\.src)?\.js/</span><span class="PUNC">.</span><span class="NAME">test</span><span class="PUNC">(</span><span class="NAME">src</span><span class="PUNC">)</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2898</span> </span><span class="WHIT">      </span><span class="KEYW">continue</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2899</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2900</span> 
<span class='line'>2901</span> </span><span class="WHIT">    </span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">src.lastIndexOf</span><span class="PUNC">(</span><span class="STRN">'/'</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2902</span> </span><span class="WHIT">    </span><span class="KEYW">if</span><span class="WHIT"> </span><span class="PUNC">(</span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">!==</span><span class="WHIT"> </span><span class="PUNC">-</span><span class="NUMB">1</span><span class="PUNC">)</span><span class="WHIT"> </span><span class="PUNC">{</span><span class="WHIT">
<span class='line'>2903</span> </span><span class="WHIT">      </span><span class="NAME">PaintWeb.baseFolder</span><span class="WHIT"> </span><span class="PUNC">=</span><span class="WHIT"> </span><span class="NAME">src.substr</span><span class="PUNC">(</span><span class="NUMB">0</span><span class="PUNC">,</span><span class="WHIT"> </span><span class="NAME">pos</span><span class="WHIT"> </span><span class="PUNC">+</span><span class="WHIT"> </span><span class="NUMB">1</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2904</span> </span><span class="WHIT">    </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2905</span> 
<span class='line'>2906</span> </span><span class="WHIT">    </span><span class="KEYW">break</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2907</span> </span><span class="WHIT">  </span><span class="PUNC">}</span><span class="WHIT">
<span class='line'>2908</span> </span><span class="PUNC">}</span><span class="PUNC">)</span><span class="PUNC">(</span><span class="PUNC">)</span><span class="PUNC">;</span><span class="WHIT">
<span class='line'>2909</span> 
<span class='line'>2910</span> </span><span class="COMM">// vim:set spell spl=en fo=wan1croqlt tw=80 ts=2 sw=2 sts=2 sta et ai cin fenc=utf-8 ff=unix:</span><span class="WHIT">
<span class='line'>2911</span> 
<span class='line'>2912</span> </span></pre></body></html>